As FearlessSpiff indicated, the firmware to fix the "update loop problem" is on HP's web site and I applied it no problem.
I've only had the printer a couple of days - I did a lot of reading on it before pulling the trigger and it certainly meets my aesthetic demands like no other color inkjet printer out there. (My day-to-day home office printer is the stunning multi-function Samsung SCX-4500 laser printer - these two machines compliment each other well.)
Among discussions out there, two major items were noted as negatives:
1. The "update loop" problem (which now has a fix.) When I read this, my first task was to turn off the auto-updates on the printer itself so I wouldn't get caught in that problem. Basically within the same day, lo and behold, a firmware update came out, so I applied it via my Mac wirelessly to the printer - all went well, and I still have auto-updates turned off just as a precaution.
2. The front panel of the printer opens to release a printed page, then is "supposed" to close after you take the paper out. Many times, it does not close, thus ruining the overall "cool" factor of the device - it just stays open. If you manually close the door, then print again, it performs normally for as long as the printer is NOT "asleep," once the printer goes to sleep, this somewhat annoying cycle starts over again.
You can search the web for "HP Envy Printer door" and find forums where the issue has been talked to death for months. In the grand scope of life overall, it's not a show-stopper, and I really LOVE this printer-scanner-copier in many respects, especially its' look and overall operation. (A great treat is being able to have the option to print on both sides of the paper automatically!)
But a big selling point is, after all, the "fun" of the door opening, the paper catcher sliding out, and everything resetting back in place when you remove the print job - as I stated, after it goes to sleep (you can choose only 5 or 15 minutes, that's it) the door does not "remember" to close after that first job. If you close it manually, and the printer is "awake" it will open and close normally.
When and if that gets properly addressed, I don't know. But, for now, it's not enough for me to return it for the other color inkjet options out there - I don't relish the idea of having an SUV-sized hunk of plastic taking up my desk real estate. It's a small cost for the return of having a beautiful machine. Art for Arts' Sake? Perhaps.