I'm about forty hours into ME:A. It's...okay. My first reaction was massive disappointment, but it has gradually grown on me. I could go on and on about the negatives like the bad dialogue, unengaging characters, lack of imagination in the new aliens and settings, far too many pointless fetch sidequests, etc etc, but the single biggest problem is that it just doesn't feel finished. There's a whole level of polish missing from everything from to the UI to the scripting, and it really shows, especially seeing as I came to it direct from Horizon: Zero Dawn, which was just sumptuous in every respect (if you have a PS4 and you haven't played H:ZD, make that your next proper game, it's amazing).
All that said, somehow I want to plow through and see what happens. It might just be residual goodwill from the original trilogy, but it's Mass Effect-y enough to keep me playing.