I am really feeling mixed about Civ V. I am one of these long time civers who started from the very first one and kept moving forward. Its hard to go backwards in time and play the older versions with all the new ones which have been released.
There will always be differences in opinion between players, we simply can't agree what should or should not be in a game or whether or not its going to appeal in the same way to all players. For example, graphics, I hear some say they are great, all the little animations etc, and I hear others say they are to pastel and bland. In some ways, I think both sides are correct.
Other comments I hear is the game is more balanced with resources in Civ V vs Civ IV, which is true, but in some ways, this removes the element of risk. Now I KNOW I will have strategic resources to defend myself, thus I can trash the AI at my leisure..sort of anti climatic. If you played civ 1 or 2 resource allocation was the difference between equally skilled players. You can argue this ruins the game but in reality, it allows different strategies to evolve. Many different strategies did evolve from those early civ games, especially in MP, where real ego's were put to the test.
Civ V, so many are saying build trade posts, farms, upgrade cheap warriors into advanced army and befriend any and all maritime states and you pretty much win. A bit of a bore. If the game is so easy to win this way (and it is on any level but Deity for me and many others) where is the replay value???? If the AI has to CHEAT to be competitive where is the fun in that. In this way, Civ V is not alone. I have yet to really come across an AI in ANY Civ game which can match wits with a human. the ai currently in this game is garbage and can't wage war, and in reality, the 1upt hurts them, it doesn't help them.
I know many don't like micromanaging (god forbid some of us actually have to think) but its micromanagement and pushing the envelope to its limits that makes or breaks players and allows them to play on higher levels. This is not to say that having 100 engineers in Civ 2 at the end game wasn't obnoxious or tedious, so how do we find that happy medium.
Civ IV was not perfect, in fact espionage was bothersome, but I liked religion, I just didn't like how it was coded. They could have changed the coding to incorporate it in a way so it wasn't quite as harsh in diplomacy as it came across.
The reality about this game is its different than Civ IV, thus you have to learn to work within the new elements of the game. Will it be the most successful game of the series, only time will tell. However, the game as it stands is flawed with a brutal ai who cannot wage war.
If and when these and other issues which are well detailed on these and other forums are worked out, we may have a great game on our hands. Until then, we have a mediocre product whose novelty may wear thin once the excitement wears off.