I've been in the beta since F&F but I haven't said anything in this forum yet. Here are my opinions on the game so far:
For a game in this genre, the graphics and visuals are almost perfect. The animations of characters as well as monsters and the environments are far above anything I've seen in other action rpg dungeon crawlers. Although Titanquest looked a bit better in some ways, I feel the style of D3 is cohesive enough to out do it. The only thing I'm having a bit of trouble getting used to is the overuse of pastel colors vs the darker feel D1 and 2 had. It really does give it a smoother look and improve spell effects though, so I'm good with it.
There are some new sounds as well as some from the earlier Diablos. All are dark and sinister, a perfect fit for the series.
I am having just as much fun in D3 as I did in the beginning of D2. The new controls and keybind settings are phenomenal. For example on my Demon Hunter I bound Vault to Mouse B4. I simply point and click the little side button and boom I'm yards away ready to rapid fire something down. This new feature is going to really enhance Arena PvP play in retail. The addition of interactive environments such as dropping a chandelier on unsuspecting mobs is just fun. (I wish there were more of them!)
Replay Value: 10/10
I have played through to beta cap with each class during F&F beta, and then again after it reset for the new beta phase. Each time has been fun and I already find myself logging in just to do some magic finding or search for little caves. Today I found a den I had somehow overlooked after all this time. It had 2 levels to it and there were 2 rare mobs! If I'm getting this much playtime out of a tiny little beta, I can only imagine how many hours I'll be playing retail.
Yes the beta is small and many of us are getting impatient, but this game is sure to please any Diablo fan. It would be a mistake to write it off. Others have written up long well thought reviews, I just thought I'd add my 2 cents.