Disgustipated
Deity
http://eu.battle.net/d3/en/forum/topic/4078818115
As for bugs, this is a serious bug for me right now. Interestingly, it worked pretty good for my witch doctor, but this bug plagues my barbarian for some reason. Or maybe the bug is just getting worse and worse the more I play. No fix for it yet. Blizzard doesn't seem aware of it.
The screen blacks out for a few seconds, and I'm unable to do anything (although I haven't actually tried attacking or taking potions). I can't play hardcore until that bug is taken care of. I've died once because of it. A couple other times I nearly died.
I also get lag spikes, but that's a separate issue with my wireless ISP. I don't have access to a non wireless ISP (Cox cable is unusuable in my older neighborhood because they won't replace the old wiring). It's frustrating that a single player game is hampered by my bad internet connection. When I do a review in the review thread, I will be giving this game very low marks on bugs because of these issues. I shouldn't need such a fast internet connection to play a single player game. They assume everyone in the U.S. has perfect internet, and that isn't the case. Internet in the U.S. lags behind the rest of the world because they won't spend money to upgrade outdated infrastructure.
I still have a bug where I go to pick up gold, but it picks up normal level items too.
My bags get filled with normal level items I did not intend to pick up. Which means I have to clean out my inventory every so often because my bags get full. In D2 normal level items were worth more, here they rarely go for more than 5 gold making them useless. I don't want to pick up normal items, I just want the gold!
edit: This bug only seems to affect my barbarian. Strange. Glad I didn't wast time with my video drivers and all that. Playing my witch doctor is fine. I didn't want to play him without my brother, but oh well. Hopefully I don't get too far ahead of him. My witch doctor is much more fun to play anyways.
re-edit: I guess it does happen to my witch doctor too. But only once in 45 minutes vs. once every few minutes with my barbarian. hmmm
re-re-edit: I finished the game with my brother helping me in the final battle. The act 3 final battle I joined a public game. Overall I'd say it's a little bit easier than Diablo 2 normal. Although D2 you could spam potions the final battle which you can't do here. So that's the only tricky part of the final battle. Utilizing haunt (with the rune that gives health back) and darts that give mana back helped in that battle. I also used the fetish army, and zombie charger spell. I also used my dogs and gargantuan. Might not be the best setup, but it seemed to work for me. I usually use a more AOE setup, but this worked good for this battle. And I had set it up with the rune that my dogs would sometimes give a health globe when they died. I forgot to check my passives in that battle, but it worked out. I'll have to micro that a bit more on nightmare. My brother had no vitality gear, so it took a few tries because he kept dying (he was less than level 30 too). I couldn't do it by myself. Although I went in cold without reading his abilities.
The bug is affecting my witch doctor a little more, but thankfully not during battle. It's almost like a game lag bug. Act 3 and 4 feel a little shorter than D2. The maps overall feel smaller with less exploration and a little more linear. I would have liked to seen a little more content. But I do like the crafting system, and the followers seem a little more fleshed out (dialogue and back stories). I can't really say it's any better than D2. It's about the same.
As for bugs, this is a serious bug for me right now. Interestingly, it worked pretty good for my witch doctor, but this bug plagues my barbarian for some reason. Or maybe the bug is just getting worse and worse the more I play. No fix for it yet. Blizzard doesn't seem aware of it.
The screen blacks out for a few seconds, and I'm unable to do anything (although I haven't actually tried attacking or taking potions). I can't play hardcore until that bug is taken care of. I've died once because of it. A couple other times I nearly died.
I also get lag spikes, but that's a separate issue with my wireless ISP. I don't have access to a non wireless ISP (Cox cable is unusuable in my older neighborhood because they won't replace the old wiring). It's frustrating that a single player game is hampered by my bad internet connection. When I do a review in the review thread, I will be giving this game very low marks on bugs because of these issues. I shouldn't need such a fast internet connection to play a single player game. They assume everyone in the U.S. has perfect internet, and that isn't the case. Internet in the U.S. lags behind the rest of the world because they won't spend money to upgrade outdated infrastructure.
I still have a bug where I go to pick up gold, but it picks up normal level items too.

edit: This bug only seems to affect my barbarian. Strange. Glad I didn't wast time with my video drivers and all that. Playing my witch doctor is fine. I didn't want to play him without my brother, but oh well. Hopefully I don't get too far ahead of him. My witch doctor is much more fun to play anyways.
re-edit: I guess it does happen to my witch doctor too. But only once in 45 minutes vs. once every few minutes with my barbarian. hmmm
re-re-edit: I finished the game with my brother helping me in the final battle. The act 3 final battle I joined a public game. Overall I'd say it's a little bit easier than Diablo 2 normal. Although D2 you could spam potions the final battle which you can't do here. So that's the only tricky part of the final battle. Utilizing haunt (with the rune that gives health back) and darts that give mana back helped in that battle. I also used the fetish army, and zombie charger spell. I also used my dogs and gargantuan. Might not be the best setup, but it seemed to work for me. I usually use a more AOE setup, but this worked good for this battle. And I had set it up with the rune that my dogs would sometimes give a health globe when they died. I forgot to check my passives in that battle, but it worked out. I'll have to micro that a bit more on nightmare. My brother had no vitality gear, so it took a few tries because he kept dying (he was less than level 30 too). I couldn't do it by myself. Although I went in cold without reading his abilities.
The bug is affecting my witch doctor a little more, but thankfully not during battle. It's almost like a game lag bug. Act 3 and 4 feel a little shorter than D2. The maps overall feel smaller with less exploration and a little more linear. I would have liked to seen a little more content. But I do like the crafting system, and the followers seem a little more fleshed out (dialogue and back stories). I can't really say it's any better than D2. It's about the same.