I got into Beta Sunday morning but didn't get to play until yesterday evening. Personally, I don't know what to think about the game. It's not amazing looking. It's not amazing flow wise. It's not even amazing strategy wise. As someone who has played over 5000 games of Warcraft 3 and probably over 2000 games of Starcraft, I didn't really see it as the jump in games that I had hoped for. Instead I see it as Prettier SC1.
In Warcraft Three most of your focus is on a group of perhaps 12 units and heroes. You walk around with these groups and attack creeps when you aren't attacking your opponent. If you get better you can learn to deviate a little from this and do multiple things at the same time, but really the focus is on one area at a time in games.
In Starcraft 2 I feel like I'm creating a net for my opponent. I harass him from behind, I expo, I hit him with 3 units in the front. I make him chase my scout for 2 minutes. I do all these things at once. This is exactly the same thing I did in the original. It's almost as if nothing has changed.
So for the purists out there who still go back to the original when they can I believe that this is a game you will love. For me, I will enjoy the new wave of competition but the battles hold little interest. Micro is important but it is not critical like it was with Warcraft 3. I find myself not watching battles at times to work on my economy or to expo check. I rarely if ever looked away in W3...
I doubt it is fair to compare this game to Warcraft. They are designed differently even if the commands are the same. The game is fun though, and its a blast to shut down everything your opponent tries to do. I just hope I am able to dive into this game the same way I did the original and W3.