Mass Effect (basically thanks to 1 and 2) is one of my favourite series, so me not buying this game the very day it launches is something I wouldn't have believed months ago.
But, beyond the more than often awful presentation, I don't feel much in regards to the setting (the concept is cool, but, from what I have seen, the game doesn't embrace that), the characters, the new races... I obviously should play it myself (which I'll eventually do), but, seeing many reviews and seeing impressions of people I trust, this doesn't seem to be on par with the previous ones, at all. It's probably, at the end of the day, a good enough game, but I'd rather wait a little bit. Still, this is something I need to see for myself, but the already decreasing hype was lowered to a point where I didn't bother to buy it (Persona 5 being so close also helped).
In regards to the animations, I see that, above all, the game wasn't ready (which is funny considering EA said that they wouldn't mind delaying it 5 months if needed). A game as big as this won't have mo-capped conversations all the time, so I'm guessing they're procedural and that they ran out of time to make the final, actual tweaks to the individual scenes, making them look that way.
Also, glitches and bugs (attribuitable to the game's open nature and its apparently rushed state) and really, really poor textures and shaders for the human characters. Seriously, what the fuck is up with the eyes.
The fact that the character creator is shite is also important, as most non-important NPCs are made through it. But even if that weren't the case, it seems like a big step back from Dragon Age: Inquisition, which had a relatively good character creator. Here, they have the same problems (shitty hair and beard options -both stylistically and graphically, the beards being fucking painted-in textures-, but with inexplicably less options in regards to tweaking the face of the character). I'm guessing, again, that time ran out, because I don't understand it, especially as they have just one race to customize, unlike in DA:I.
And it's a shame, because the game can look really pretty (especially the aliens, the armours and the planets themselves) and the combat looks really fun and an actual step forward. I hope they're able to update stuff and polish the game up to a good enough level whenever I decide to buy it. I just hope EA doesn't say "fuck this" and abandons the IP due to a game that was pretty clearly not ready yet. I'm guessing that, with the new Bioware IP and with the next DA, we're not going to see a new ME in a while, though.
Honestly, unless the Andromedan setting ends up wowing me, I'd prefer them going back to the Milky Way for the next one, making them choose the most reasonable canon ending (who gives a shit, it's literally something you decide right before ME3's ending) and build on that. The fact that such a great, huge, unexplored setting like the Milky Way was abandoned in that manner is criminal (although understandable, as they wrote themselves in a corner).