having just set up and spending some 4 hours or so with it. there is certainly a constant "WOW" factor when using with the right games/demo's, but all games really need demos so you can see if your going to get affected by Nausea as there is no way i'm going to drop £40+ on something that might make me feel ill..
gameplay wise the worst i've tried so far is easily the Driveclub demo, the graphics are such a let down and poor draw distance spoils the racing.
the only game i've suffered nausea with so far is a VR platform game demo (cant think its name) that looks and plays fantastically until i'm moving into the screen and then nausea kicks in.
Carnival Games VR was the game that made me (well the wife) buy PSVR and it is an ok experience for me, although she loves it so far.
the kit took me about 15 mins or so to put together, but may take longer depending on how your PS4 setup is. For me, the thing will just stay connected to my PS4 all the time with the headset sat beside my PS4 when not in use. This does of course mean that when i "move" over to Pro that i'll be missing out on the HDR side of gaming as i'll not be unplugging this every time i want to play a normal game unless there is some way to fit an HDMI splitter.