I have two Nakamichi CR-7’s, one gear and one belt. Belt is better. But with my current vinyl setup, there is virtually no wear, and little reason to tape.
CR-7 is a 3 head machine with an auto setup feature, which is very convenient. Also an azimuth adjustment for playing tapes from lesser machines. It does not have the cast frame of the 1000 (and, I understand, the Dragon).
Even with metal tapes, there is a small loss of quality with cassette, but it’s not bothersome to me. Best of all are the ceramic body cassettes, but they are pretty much unobtainium now.