I've been playing the beta release 5, and so far I am very satisfied with the fine tuning of civics, and techs and units. So keep up the good work, direction is right!
I especially like those short civic descriptions and the generally simplified bonusing system they have. (Or at least the civics seem to be more straightforward and easier to grasp with their effects.)
Fine tuning is carefully done. This is also true with fine tuning of the building bonuses.
Of course, the removed civics bring several XML error messages when starting the game/mod, but this is minor problem and easy to solve (next release hopefully has new favourite civics assigned to those leaders who got theirs' removed.)
Another very minor nuisance is the global graphics for some buildings. For example, the Hellenic Temple has this black shroud around it. No hindrance for gameplay, but annoying when zooming on cities and taking screenshots.
Also, some buildings are occasionally displayed so close to each other that they overlap, or get walls running through them. I don't know how easy it would be to clean up the building graphics, but if someone has more experience with this, please at least shed some light on the issue.