I've been playing since Friday night and I just reached the max level cap of 35. Overall, I've been enjoing it, but I've been noticing some things that I think need tweaking.
The health is fine where it is and should not be touched. However, the recoil on the weapons seems much harder to manage than in the July beta. Because of this, lots of people are giving up on actually aiming their guns and instead are using "sprint, blindfire, melee" because that simply works better than aiming right now.
At first I really liked the new sprint. It feels so much better having more control, and I love the faster pace of the game that this causes. However, this also allows people to run in and blindfire/melee when you are trying to aim on them. And since aiming is more difficult (and they seemed to have removed "slow down" when you are getting shot), the person sprinting in blindfiring (with or without melee) is more often getting the kill over the person aiming their weapon. In looking over the posts on the official forums, it seems that the vast majority consider this a problem that is hurting gameplay. Currently, the "tip" displayed in the lobby "Amining is always more accutate than running and gunning" isn't quite true.
I think that if they tamed the recoil just a bit, brought back "slow down" from bullet hits, and slowed down sprint a bit (as well as decreasing the duration and increasing the recovery time a bit) it would help alot with this issue.
I also think the game would be MUCH better off if they used the melee damage from "Hardcore" in all modes. Needing three hits to kill someone would discourage people from running in and meleeing and encourage more gunplay.
I've been trying to use aiming gunplay as much as possible, but I've resorted to a good amount of the "sprint, blindfire, melee" tactic myself since it is simply more effective than aiming in most confrontations right now (within a certain distance). So I hope they tweak this a bit.
I really like the maps. The sandstorm on Desert Village is cool, Syria is challenging with so many angles that people can come at you, and the London underground is fun, though the platforming mechanics on the train need more polish. I really like Yemen, and I'm not a sniper (I can hardly ever hit anything).
The music is fantastic! When a power play starts or there are only five kills left, etc.. and that music kicks it is so much more intense and fun. I was the marked man in a power play and some cool adventure music kicked in and I spent that next minute running for a defensable position and fighting off the enemies coming for me, narrowly escaping several attacks while killing them instead, running up the stairs with someone behind me and then spawning my RPG, turning and blowing them to hell, and then jumping back down the stairs over their body while a grenade exploded on the steps, and ultimately surviving the minute without giving them any kills (all with that intense music playing) is about as good as this game can get! It really felt like I was in an adventure movie.
Unfortunately, there's a lot of frustration right now with the overuse of "sprint, blindfire, melee", and there's been plenty of lag to gripe about. But it's moments like the one I described above that show me how much fun this game can be, so I hope Naughty Dog will make some MINOR tweaks to those things.
The character models are "ok", but seem a little iffy. I always liked playing as Chloe, and I still use her mostly, but I'm not wild about what they did to her model. They took away her beautiful ass! At the end of Uncharted 2 when she said "you're going to miss this ass", she wasn't kidding!