How long is Mass Effect 2 compared to Mass Effect 1? How much more stuff is there to do?

I also know that mass effect 2 is on 2 discs so it is probably longer. Also it has better reviews.How long is Mass Effect 2 compared to Mass Effect 1? How much more stuff is there to do?
If you complete all side quests and add-ons (and use veteran or hardcore difficulty) then Mass Effect 2 will last around 30 hours (compared to about 20 hours for Mass Effect 1)How long is Mass Effect 2 compared to Mass Effect 1? How much more stuff is there to do?
Mass Effect 2 is much longer.Mass Effect missions are Eden Prime,Noveria,Feros,Virmire,and ilos.With the side missions its still a pretty short game.Mass Effect 2 is a long game especially if you do all side missions.How long is Mass Effect 2 compared to Mass Effect 1? How much more stuff is there to do?
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