Roger,
Yes, but probably not as big a fan as you
The only non-Ampex machine I own is a Studer A80 VU MKII outfitted with FM 1/4-tk playback head, which earns its keep due to gentle tape handling.
The rest: Ag440 2 trk, Ag440 mono, AG350, 354 2 trk, ATR-800, 300, & MR-70 2 trk.
The ATR-800 is a surprising sleeper; not particularly popular with the Ampex crowd but it's versatile and sounds quite good.
The MR-70 is apart until I can figure out how to properly machine a 440c servo motor to fit; at this point I am not sure if it's worth trying or just revert to the original capstan tire drive.
My 300 is a unique project, outfitted with 440c servo and constant-tension mods, it runs both 350 (tube) and AG350 (SS) electronics all in the same rack, original Ampex heads on the tubes and FM ME on the SS. Currently re-capping the 350's. Dubbed 'Ampexius Maximus' by my wife, I've been working on this one steadily for the past year. Should be a nice machine....
It's all like a bad addiction, you start with one deck and it just takes over....
Tom