They were fantastic. I had a 507. But they are now quite old and repairs are nearly impossible, and so very risky to purchase for a main system. If you're putting together a vintage system, great.
I was given an old PS Audio transport with a drawer that wouldn't open. But I was familiar with the sled it used (9Pro) and replaced the teflon gear that gets chewed up over time on all of them. Just one of the adventures you can look forward to!
Have fun!