I currently own 3, 2 in need of work and one "semi" working.
The only one connected is my Teac A-4300sx, I say semi working because I think in a moment of uneducated stupidity I screwed up the recording function. Was unfamiliar with how to properly test for Sticky shed reels and upon getting a box of Sony PR series blanks I think I gummed up the erase & record heads to the point of needing replacement. A hard lesson to learn but thats the way it is sometimes.
But, it stills plays like a champ so it by no means is a total loss.
The other 2 Reel to Reels are in the repair pile, a Akai X-150D and a Sony TC-355.