percepts,
I haven't put 1000 rolls through mine -- more like half that in 2.5 years, but for the first year it was pretty much a roll a day, so that may (or may not) qualify as "heavy use" for you.
For what it's worth I'll summarize my experience, which has has been good, though not without some bumps in the road.
Negatives: (1) the covering wore horribly and had to be replaced after just 6 months. It got tacky and then downright sticky after a mere 150 rolls or so -- that may have been due to my particular body chemistry, however, as other people haven't had that problem. (2) Hanging from my neck or on a wrist strap pretty much every day for a year, the lugs wore extremely fast on mine; to the point that one of them is nearly knife-edge sharp. (I prefer gordy straps with string attachments now, but I cannot use them on the Zeiss as they will be sliced through in no time. Metal rings are out as well, as they will wear the lugs even further -- so the Zeiss goes "strapless" for me until/if I have the lugs replaced.) Some people say the lugs have been upgraded, but I don't know if that's just internet rumor or what. (3) Finally, the frame selector is sometimes stiff and sticks on a particular frame line (i.e., has to be manually pushed into position even after mounting a lens) -- other times it's fine.
Positives: (1) everything else -- I've been quite pleased. The meter is good (once you realize that it's weighted toward the left side ... if you put that end up on a vertical shot with sky in it, it will expose for the sky, not the ground). No problems with the shutter. (2) Most notably, despite its reputation for going out of alignment easily, mine has been extremely robust. I have fallen quite hard, with the bottom corner of the camera impacting the cement. Other than a gash in the paint and metal, the camera suffered no ill-effects; the RF is still dead on. (Haven't tested it with a Noct @ f/1, but it's accurate with my 50/1.4, so that's good enough for me.) Other people, of course, have reported vastly different experiences though.