I replayed me3 recently and honestly it was significantly better than I remember it been when I played it on launch. Obviously the ending rework adds a lot and some of the dlc adds significant lire that should have been in the base game as it gives needed context for the end of the game.I'm sure I recall the title of a video saying it is their best game since mass effect. 3. That confused me because I was pretty sure mass effect 3 was not particularly well received after the first two.
I'm actually trying to play through the series because I never actually finished it.
Overall though I don't think it's worse than me2 it was just crippled by expectations and the ending not making a lot of sense without the leviathan dlc.