Any Issues with Levinson 37

I am looking into buying a used Levinson 37 transport where the number of hours on the unit is unknown. Everything seems to work fine (I have it out on loan), the drawer works smoothly and all the mechanics seem sound. Played a few disk and there were no problems.

I wanted to find out what types of issues people have had with this unit, is the laser and transport mechanism still made, etc. . . Just trying to find out what I am getting into. I do know it sounds wonderful.

Thank you.