Let's say this. I love my Amiga 4000's. I have 2 of my own and an Amiga 2000.
Pluto, which is my first Amiga 4000, has the 3.1 roms in her, has a CyberVision GFX card, and soon will become my towered beauty with a Voodoo(haven't decided Mediator or Promo).
Cecilia, my other Amiga 4000, has her set of 3.1 roms coming any day now. She is going to be using all SCSI once I change out the icky Rev .9 Super Buster of hers.
Amanda, my Amiga 2000, is just my video toaster baby.
As always, try to get a 4000 with a Super Buster 11, check the better next to the memory chips on the motherboard. Demand the full 16Megs of fast memory. No reason you should get one without it. Enjoy.