Mass Effect was never really all that great of a game. I think people mainly like it because it had great graphics and it was their first real bioware game. I'm not saying they're bad. I just don't think they're so special to have such a following 
ME2 and ME3 simply play well and promise narrative reactivity (some of which they make good on), but I think the fan following is a result of their character writing (schlock, but tasty schlock (#teamscientistsalarian)), which has allowed them to keep in people's good graces despite their story telling faults. It's also the reason they started to pander more to fanfiction types going from ME to ME2. People really liked Garrus and Tali, so now in the sequel, you can work toward an awkwardly animated sex scene with
them, too, despite the biological concerns exhaustively detailed in the first game.
As far as fidelity goes, they've struggled to keep up starting with DA:O (which was in dev hell for some time). Some of which is owed to the genre, certainly. There's simply more fully voiced dialogue to animate, which only becomes more difficult as time goes on and general fidelity increases. On the 360 and PS3, the wooden and constantly looping animations could be explained with memory constraints, but Andromeda's jank seems to stem from misguided corner cutting or time pressures. Compare it against Witcher 3, an older game, no less, and it's obvious they're faltering in a pretty crucial area for the character driven games they make.
Mass Effect was never really all that great of a game. I think people mainly like it because it had great graphics and it was their first real bioware game. I'm not saying they're bad. I just don't think they're so special to have such a following
First one sucked and turned me off the series, I hear the next entries are better and may eventually give them a shot
ME2 streamlined a lot of things, so there's a good chance. ME3 is more of the same.
