I kinda like the in-game music, but usually it is not really my music style. On the old Starcraft, I sometimes had music turned off and listened to other stuff like Dragonforce and only had sound effects on.
IMHO the game is pretty great. They did a very good job on it compared to what I expected. I feared they would do like Warcraft III and make structures take 4 minutes each to build and have a unit cap of 90-100. Finally, it seemed like the speed was a bit faster for some stuff and gameplay is much better, like how you can set workers to rally point on a mineral patch (or an new expansion mineral patch) so no more worries about idle workers that you just built while attacking. You can also select more than 12 units at once now (I believe the max is 250 or something) and you can hotkey multiple buildings on one number, making it easier for unit mass production.
Also my bro tried the game on his dual core computer and while he had to reduce all settings to minimum and resolution to 1024x768, it still looks pretty great and runs smoothly.
The only complaint I have is that some campaing units such as the medic cannot be used in multiplayer/custom games. There are also a few balance issues, but they release new patches regulary, meaning it will most likely get better and better, like the first Starcraft did.
