Reports from the multiplayer front:
1) Pugs are just as terrible as expected. I've played about 15 matches tonight, and been on maybe 3 good teams, possibly another two I'd class as competent.
2) Pugs love to broadcast the sound of themselves eating, or the sounds coming out of their speakers. Thankfully, Bioware has implemented a mute option.
3) Interesting bugs so far include: losing all sound while playing a match. You need to restart the entire game from desktop to get it back. And apparently if you change hosts, there is a non-zero chance that the entire game will just freeze on you.
Matches are much shorter with the 7 wave system. Some variations on old objectives make it feel a bit closer to other shooter titles, such as multiple hack objectives to capture. Others, assassination and devices, remain as they ever were. Shieldgating on enemies has been removed. The Salarian Infiltrator with a Widow is still pretty powerful (this and the previous point may be connected). Most launch maps do not seem suited for sniping however, like when ME3 was launched, I think powers may be the way to go, though I've not fully levelled up a biotic yet to see just how powerful biotic explosions can be. The Krogan Vanguard has Nova as a power.