I had one of these for many years. It has adjustability to match with all but the very lowest output cartridges, is built like a warship, and has that rich sound that was always the hallmark of Marantz equipment. I sold mine to a guy in San Francisco last year and replaced it with a rather pricey 'high-end' phono stage and wish that I had the Marantz back.
The only faults with the one that I had was paint coming off of the footers and the outer adjustment knobs slipping on the posts, both of which can be fixed. If you email Marantz you should be able to get a user manual and a service manual.