I'd like to purchase a high end Nakamichi cassette deck but do not want to deal with the hassles that I've heard several people complain about the Dragon(difficult to operate and
calibrate, outrageously expensive to repair & maintain, hard to find someone who can service it properly) I've heard the same about the 1000ZXL as well.

Others I'm considering are the RX-505, ZX7 or ZX9, and the 680ZX. Does anyone have any of these models and if you do how "servicable" and user friendly are they?

My Harmon Kardon CD491 has croaked and I need a replacement.

Thanks!