Very nice table, BUT, do not buy one for personal use unless you are willing to go through it and replace all of the electrolytics
I prefer and seek out the (upper line tables regardless of maker) Direct Drive models with the minimal chip count whenever possible (the most simple speed control systems, like SONY's XTAL-Lock is a favorite of mine) as well as trying to avoid those with motorized arm cues and such......................this going on the assumption that you want to buy to own and enjoy and not flip
I would also suggest avoiding any and all of the servo controlled arm types as well (unless you find one for virtually peanuts at a yard sale or something) I am certain there are plenty of folks who would disagree, but then they've probably never had to source parts to repair any of them either
The "636" is an excellent deck, in good to fine operating condition you would be very happy I would venture
Thomas