Supposedly, the F2 is/was Nikon's premier/best made SLR. Hand assembled. All mechanical.
There are four versions of the Photomic finder (for the F2).
I'm apparently having another flair-up of G.A.S. and have been looking at F2's. It appears that I can get a clean F2 Photomic for about $200 with a working meter. If I want the F2AS, it's going to cost me $500. I suspect at least 1 of my existing Nikkor lenses will work on the plain-vanilla F2 but my AF Nikkor lenses would need the AS.
The Rollei 3.5B doesn't have a meter at all and it takes GREAT shots (and only will ever have one lens).
Why do I want an F2 Photomic? I have a perfectly functional FE.
Explain G.A.S. to me and what is the cure?