Hi Franz,
...
After some bad experiences with roll films in large-format printing, E6 now goes exclusively to a specialist lab. I might give colour gloss another go there, but then again, medium-format slides are an expensive hobby in themselves, so I don’t really mind using a specialist lab (with the frames I want – I am a bit lazy, after all).
I’m not a big E6 user, so I can’t comment on the quality variations with many films, but whatever I’ve sent to Farbglanz so far (some C41, a few E6) has always come back in impeccable quality. The negatives/slides are bagged properly and are suitable for contact printing, and the development quality is impeccable (naturally, there are no scratches, fingerprints, etc.).
I haven’t had any prints made yet, just a CD of scans once (I think they were about 3MP, but I’m not sure anymore). They were quite heavily saturated, but otherwise of good quality.
Regards,
Philipp