You are bound to hear all sorts of opinions ranging from "AH2 sucks man parts" to "its the bee's knees." One thing you should know, in about a week, it may have gone through about 4 or more different versions as features are added and bugs squashed.
I enjoy it like I said. It runs fine on my machine and is fairly stable. The gunnery, FM, are definite upgrades. The field layouts are much better. The graphics are better, though its up to you to decide if they are a significant advance at this point in time (I like them and can see that they will only get better as subsequent features are added/modified). The clipboard and the user interface has changed somewhat, though it is fairly similar. Again, this is a definite improvement, IMO, once I have gotten used to it.
The gameplay at this point is pretty much the same, though there are some differences from AH! that could change it in the long run. The fuel availability and supply situation is modified a bit (the lowest amount that a field can be limited to through an attack is 75% right now). You can strafe and kill guns on ships without sinking them. The fuel multiplier (i.e. how fast the gas gets birned) is set to 2.0. This is higher than the MA in AH1 so some planes have pretty short legs.
As with all things, there are some bad things. There seem to be some bugs, but HT, Pyro, and the rest of the crew are hard at work fixing them.
Again, a lot of the good and bad is personal taste. I like it and can only see it getting better in the future.
