my (ps4 version) also booted right into the game after the pre-load had finished 8 hours ago, just after Franklin holding the machine gun appeared, it started in Yankton.
In the background the extra 1gb patch was downloading and I had to quit for that to install so I could use the store for the two pre-order money bonus things.
Driving in first person takes a more delicate touch otherwise there is that wheel yank animation and the camera view shifts and you can get confused.
Frame rate is ok, some of the cars in some views travel as though their positions are getting updated in every 2nd frame or something. Water looks amazing.
In GTA online you can hear people talking, I guess by default, not sure..