I'd second a Teac. I also own a 2300SD, and think it's a fine deck - and any decent local tech should be able to lube it up & adjust it for you. You can also do it yourself if you want to try - e-mail me for a great source for Teac belts, pinch rollers & lube kits. There is no doubt that a Revox A-77 will sound better, but they're a lot more expensive to buy and maintain. You first have to decide what you're going to play back. If you are buying 7 inch pre-recorded tapes at tag sales, a 7 inch deck like the Teac 2300 series - or even a clean A-1230 - will do fine. Most 7 inch tapes available are recorded at 3 3/4 or 7 1/2 inch per second, and a small Teac deck will do a fine job at playback. If you find some 10 inch reels, or want that capability, then you're in the Teac 3300 series or Revox A77/B77 territory. If you go looking for a Teac, be careful of the models that end in "40" 2340, 3340, etc. Those are 4 channel deck, and although they will do what you want, they're overly complex for simple playback. I've owned & used quite a few Reel-toReels in my time, and would be happy to answer specific questions if you want to e-mail me.
Good luck in your search, Ed
Good luck in your search, Ed