I'm still playing Mass Effect and I'm still enjoying it. In fact I think I'm enjoying it more now, even though I'm well over 15 hours into it. The big reason I'm likeing the game more now, is because my character is almost level 40, and is perticularly strong now. I've also gotten pretty familar with the whole politically charged world of Mass Effect and am still drawn into the story.
The game is far from perfect though. I've seen that exact phrase in a lot of player reviews that still gave the game a 9.5. I wondered how that was possible, now I know. Despite all the cool new gameplay elements, the great story, the amazing voice acting a player animations the game enjoys showing off its glitchy nature. There are tons of texture glitches and sometimes a band of colored light covers your screen for no reasons. Sometimes when I've been walking I've gotten stuck in objects. Sometimes I can work myself out, and sometimes I can't. The sessions in your car are pretty bad at times too. Unlike a lot of other review I enjoy using the car especially in storyline, but the gun accuracy isn't the greatest and if you find, for some reason, you're not hurting what you're targeting then you've just got to move around until you find a better spot and try again. Also, Thrasher Maws can magically kill your car in one hit, even with maxed shields and full health. I don't know why. Thankfully, the auto-save has you back in that situation (it saves every time you land on a planet). Another constant problem is the framerate. It drops here and there which can be annoying in a fight, especially when you're trying to snipe enemies.
The weird thing is the despite the many problems, the game is too good to miss. The marriage of RPG and Tacatical shooter is a match made in heaven. The attention to detail in dialog is also unmatched in any other game. Seriously, what other game do people express their emotions with facial expressions and gestures. It is the most believable in game converations to date. So the game earns the right to overlook its faults. I'll probably write a review soon, but for an immediate decision, BUY MASS EFFECT! It isn't a perfect game, but it is definitly a great one.