We have been using one for about a month and a half. So far it's been perfect and has done everything we have asked of it. It does 60 cpm for 8 1/2 x 11, but we do a lot of 8 1/2 x 11 double sided, it does them much, much slower (my only complaint so far).
We've had a machine since December.
As with Lou it does slow down a fair bit doing double sided, particularly if you're folding as well.
One thing we were caught out on is the inability of the booklet maker to fold SRA3. This means doing folded A4 with bleed becomes a real problem. The only way to do it is order specialty paper at 450 x 310 (instead of 320). This way the booklet maker will handle it.
Quality wise it's been superb - very, very good image quality.
Back to back registration is pretty good - we were quoted .5mm but they back pedalled to now say 1mm. It seems to do that pretty well and it is way, way better than our old Xerox Apeos.
We're using the Konica Controller (as opposed to Fiery) and after a week or so getting used to it it's been good. Fiddly going to banner print but otherwise OK. It has a few other quirks and the drivers can be complicated on tricky jobs (I've never used Fiery so can't directly compare).
The DirectPrint hot folder software works fine but goes deaf after a period of time (30-60 mins?) - the service still runs but it stops processing jobs. I wrote a small utility app to stop and restart the service and this has solved the problem. Mind you, I don't think we should have to write programs to fix buggy software but I suspect a fix will come.
ColorCentro software is painfully slow, even on a fast machine, but calibration is straightforward. Curve setting is a lot more convoluted.
The feed for the Bypass tray is unreliable. We avoid using it unless absolutely necessary and even then we tend to have to feed sheet by sheet.
We feed it stocks from 80 gsm bond through to 300 gsm and it takes most of them without issue. We get the occasional jam on heavier stocks but generally it's been good - we also use a lot of offset stocks.
Overall we're happy with the machine. Output is great quality and RIPing speed is good. If we were looking to buy again I think we'd get another one but would definitely look at the bigger booklet maker. I still can't believe that the booklet maker on a machine that prints SRA3 can't fold SRA3 - just dumb.
'k
