I have been extremely busy, but am working on the (probably 10,000 word ) full review. The update is:
Overall: Stunning, perhaps even revolutionary (although not without issues).
The gamut, dynamic range and overall image quality are like nothing I have seen (oranges and greens from previous top Epson's, combined with Canon blues, with a little extra in the darkest tones that I haven't seen an inkjet do before. I don't have the equipment to measure numbers, but the numbers I've seen (20% or so higher than most other things) feel accurate from hundreds of prints on a variety of papers.
Much less clog-prone than ANY previous Epson (more like a Canon, but with Epson's advantages in print longevity).
Gloss differential and bronzing effectively eliminated (I asked Epson to send me their most challenging paper, have been printing on Metallic Glossy, it does a better job than a Canon Pro-2000, which has a Chroma Optimizer channel). Epson is slightly better WITHOUT a varnish channel than Canon is with. The Metallic paper looks like an old super-gloss Ilfochrome, with that liquid gloss.
Easiest paper feed system I've seen - I have a physical disability that takes out one hand, and just wouldn't be able to feed 44" rolls using a lot of systems - I can here.
Superb paper versatility - no more of "that printer is the best on Matte, but I prefer this one on Baryta". No ink switching at all. I haven't yet found any paper on which I prefer the results from any other printer.
I've run into two issues.
One is the well-known head strike problem. I've gotten to where, by adjusting platen gap and a couple of other parameters and knowing the printer, paper and images, I pretty much never have a head strike (it's really head RUBBING, not a full on head strike) any more - but that wasn't an easy place to get to (and it DOES require adjustments, even on a per-print basis). If I see a print with a large, deep shadow, I'll open up the platen gap by one setting over what I'd normally use. I can print pretty much anything by eye at this point - but it took a while to get there. I'll share a table of my favorite settings as a starting point to experiment from. It WILL require a bit of learning from each user.
The second is that the cutter will occasionally catch and cause a paper jam. I've had this problem twice in 200 or so prints, and I think the second one may have been my fault. After the first incident, I removed the cutter, cleaned it and reinstalled it (but did not replace it - it's a relatively inexpensive consumable). The second came in pretty quick succession after the first (about ten prints later), and I think the first may have damaged the cutter.