Some thoughts I have collected
Queue/menu gpu load is exactly as in game load, so GPU is just roaring away while nothing is happening (and it doesn't feel like intense 3d is necessary to just show some animated background). At least add a menu fps cap ffs
Netcode. In general hit reg is 10/10, netcode is very good. Only occasionally in CQB you think you had a jump on a guy, but split second later his salvo just hits you all at once, boom dead. No idea what the ping was, but fair enough, server sorted out who killed first.
Still not a fan of ridiculously low full-auto spread. Most guns with modifications get very little recoil/spread, but it some cases it becomes cartoonish. Lasered by MP7 at 100m full auto several times. In previous BF it used to be a LMG on bipod that had spread so low you could snipe full auto, but MP7 with its ROF is a next level joke.
Surprisingly enjoyed DMRs. Felt very weak at first, but in certain situations a guaranteed 3 hit kill at any range is nice (2 hit with SVK I think). Ignored shotgun existence as I heard and felt they are broken.
Did not enjoy conquest maps. Domination was very CoD, so ok I guess. Liked Breakthrough the most.
Vehicle wise it is very much BC2. Mostly for fun and yolo, but a good vehicle crew with support makes it almost impossible to counter.
Only had one go with a jet, must be missing something in how to control, can't turn tight with a mouse.
Heli is almost pointless right now when every engi has many stingers by default in addition to AA guns on map. I can see how it can work with map experience and reduced stingers present. But in beta everyone was yolo solo pilot with life expectancy of 5 seconds.
I played Support the most and feel it is OP. Never running out of ammo, a heal and especially insta-revive no cooldown defib. Smoke the area and literally full speed sprint around under fire, no one can stop you from reviving a field full of bodies in 3 sec. I see other players giving up on doing the very cool but very vulnerable drag-and-revive completely, expecting there must be a Usain Bolt with defib running around making their efforts pointless. I think just leaving Support with fast drag-inject would be enough. Or we'll see if other (even better?) gadgets compete for space instead of defib.
Meanwhile other classes reloading explosives from support box is so slow and... cancels/resets if you leave the tiny area. Stupid
Not a single instance of voice chat being used for anything

No alerts, no direction of attack. Only had couple players with open mic background noise. I guess this is the new "tactical" shooter world. Hell, even Overwatch has occasional useful voice comms.