Supreme Commander is a technically amazing game, with a few annoying gameplay factors.
The graphics are state of the art, sharp, crisp and give a great view of what futuristic warfare could be like.
The three different factions are far too similar, and their differences are very minor, and not evident until you get into the experimental units. The lack of diversity is frustrating, I would much prefer something like the differentiation between the teams like Warcraft/ Starcraft has.
The game is excellent, but very imposing and has a steep learning curve, but it is very rewarding and the tactical map is excellent. The HUD is decent, but ugly and does not fit in with the games sense of style at all.
Nonetheless this is a must buy for RTS fans, and should be highly considered by any other PC gamer.