Mass Effect 1 was in no way a perfect game. The first few hours are really boring, especially the Citadel, and the Mako sections are tedious to a T, but it has charm. The menu design, the HUD design, especially the aiming reticle, the handsomely voiced codex, all of it gives the game a unique feel.
Then there's Mass Effect 2, or rather, "Mass Effect 2: Hey kids! Look at this cool game that's hip and rad and has everything you love from popular first-person shooters like those from prestigious publisher EA® Challenge Everything™!"
Quickfire complaints. Ready go.
The aiming reticle sucks.
Aiming in general sucks.
Weapons still don't need ammo, but they need "thermal packs" that act just like ammo? What the f--?
Shepard becomes the Million Credit Man.
The 'previously on Mass Effect' comic features several mistakes, such as Ashley's magically expanding breasts, pictures of Garrus and Tali dual-wielding pistols, forcefully implying Shepard's opinions by calling Liara and all Asari "
beautiful," and removing the options for certain decisions.
The ship sucks.
Loading screens suck.
Hacking sucks, and there's no way to bypass a failed hack.
Salvage is still in the game, but only to instantly reward you with credits upon finding any.
No options to cp Miranda.
The Illusive Man is literally the worst thing about the game.
Now, when I started playing Mass Effect 2, I immediately got that "nope" feeling I got from Jak II. The game is such a radical departure from the original that it makes me physically uncomfortable, but Jak II turned out to be a remarkable game despite this initial reaction. However, I also had far fewer gripes about Jak II. It at least felt familiar enough for me to be able to get right into it. I'm still going to try to beat Mass Effect 2, but it's going to be much more difficult to want to, given everything I've listed above.
Seriously, it's no wonder why EA is so commonly regarded as the worst company...ever.