That's good to hear. We run J75s and don't generally have quality or speed problems, primarily our concerns rely on speed of service when we do have a problem.
The SIQA tool is very important in getting the alignment near perfect. Just depends on the kind of work you do I guess..
Speed ... While I wish the machine was faster, it's wa-a-a-a-y faster than when we sent our work out, plus, we don't turn work away any more. One of the techs that have worked on our machine told me that if our volume ever went up to where we really felt we needed a faster machine that we may be better off just getting another one of the same model that we have ..... yes, speed would double, but I guess there wouldn't be a learning curve on operating it, but also the supplies wouldn't have to be duplicated, nor need the storage space for those supplies. He also said that faster machines usually require more maintenance .... higher speeds/more production/more demands put on the machine.
SIQA Tool ... When they were installing the machine the tech told me that I was more picky than any of his other customers. What did he expect, I'm a printer, not some button pusher that wouldn't even know how to check to see if the front and back were even aligned together?
I understand that the larger machines have simplified this whole process.
Booklet Maker .... Yes, we use ours. It definitely slows the machine down, but it saves time and does a pretty good job.
Envelope Printing ... Ours has the extra-capacity feeder, and it includes an attachment for running envelopes. It is limited to #10s and Monarch envelopes, and we have to jump through a few hoops to get it to print (seems to be less hoops the more we use it). It's cost prohibitive for most runs, but we have used it and been very pleased with the results. The quality beats the inkjet envelope printers' results, but again, cost is an issue.
I can't imagine quality being any better than what we're getting all around on this machine. It just needs to run more.