I'd still like to see some real-world PS4 vs PC comparisons.
PS4 screenshots must be taken using a capture card, not the in-game camera.
https://www.youtube.com/watch?v=-bzqFT_0AbE
https://www.youtube.com/watch?v=5A6EBL2t6Lo
http://gearnuke.com/gta-v-pc-normalv-high-vs-ps3-vs-ps4-screenshot-comparison-shows-wait-worth/
Try these.
GTA Online is definitely hit and miss right now but I'm reasonably confident that Rockstar is going to throw some more support at it. I'm spending more time in single player right now and giving that a chance to mature and settle out a little bit more.
The few times I have been on I was more fortunate than you. I was able to finish the first Heist you can do and started on the second. I probably won't attempt to get serious about that for a little while.