Personally I'm loving all of the changes within this beta, which means I'm probably not one to provide much useful feedback other than, "Yes, this is good". However, I never play on Immortal or Diety, and I rarely if ever go for Conquest victories since it's so annoying to do so when playing on Huge maps with 14-20 Civs. So from the perspective of someone who only ever goes for Diplo/Culture/Science victories, I find all of the changes to be very nice, even the unit changes to ships and ranged siege units.
I'm not sure where the dislike for the Policy-linked Wonders comes from though, as that seems to have been a long-time feature of this mod. I thought the whole point was to encourage players to fully complete Policy trees rather than just picking and choosing a few from each? The AI certainly never picks and chooses, they ALWAYS pick one tree and finish it before moving onto the next. If there is some strategic benefit to pick and choose 1-2 policies from a tree and then move to another, then the AI should be trained to utilize this as well. Otherwise the trees should be edited so that it's always optimal to fully complete them rather than pick and choose. Now, I can see arguments for what Wonders work best as the Policy tree finisher as compared to the current batch, but I'm not too bothered by the timing. Usually by the time I finish a tree I'm about 3-6 techs from unlocking the associated Wonder, but I also tend to focus on optimizing Cultural output, so I'm usually "ahead" of my own Scientific gains when compared to Policies. However, I cannot see a situation in which a player could be so far ahead in techs but so far behind in culture that they unlocked the tech for a Policy-locked Wonder before they had the policy tree complete. That said, the only time I've ever been blocked from building a Wonder due to lack of total Policies is when I rush to the Classical Age ASAP. Overall I also like the changes to the speed that policies unlock, but again I tend to focus on culture Civs so I am probably biased in this regard.
BTW - I agree with the sentiment in the Ideology balance threads that getting 2 free policies if you're the first to unlock an Ideology should be nerfed. It feels like cheating to get to Ideologies first, pick Order for the Great Leap Forward and free Military Academies, and then immediately switch to Freedom for the free Hospitals. I feel it would be fairer to only get one free policy once you accept an Ideology, and for ALL Civs to get this one free policy regardless of when they reach their Ideology. Then, once you get your free one you never get another free one even if you later switch your Ideology.