Played some online. Seems on par gameplay and connection wise as other versions as far as I can tell. Had a couple random crashes though while playing online.
The other thing that is starting to annoy me is the really low-res hit effects/transparencies they are using. Digital Foundry pointed this out, and it's really noticeable and ugly, even in while playing. I'm not sure what they did, perhaps they used some really low-res hit effect assets from the older versions, but surely they can fix this oir replace them with proper effects. There's no reason for this to look so jagged. This is from DF's video and a few other shots.
Shots from DF's comparison video (PS4 left, PC right)
EDIT: So messing around with the PC settings, apparently the setting that affects those hit sparks is the "Particles" setting. The PS4 seems to be running at the equivalent of those set to 'Middle', not 'High'
PS4 screen shot:
PC screen shot ('Particles' setting on High)
PC screen shot ('Particles' setting on Middle)
PC screen shot ('Particles' setting on Low)
So perhaps there's some engine setting they overlooked, and it's a simple tweak to enable the higher quality setting.