I just picked up an RE Super at the PHSNE show, from Michael Zacks (Zacks Camera Repair in Providence, RI). I already have one of the Super Ds (same camera; the Super D was the North American model name). The one I just got is a little lumpy cosmetically, but works perfectly, and came with the flash coupler, which I've never seen before.
I think these are really nice cameras -- the meter readout is very easy to see, and having the meter built into the mirror is a great idea. They are beautifully made and quite sturdy. The only ergonomic complaint I would raise is that the depth of field preview lever is a little awkwardly placed , but that's a mild criticism.
The RE-Topcor lenses are really good. The 58/3.5 macro is flat-out fantastic. I think it's better than any of the competitors' offerings. The 58/1.4 also fully deserves the praise it gets.