I got a roll of eSatin from Lexjet. Here is my feedback. I had been using HP Premium ID Satin (not Professional Satin).
Weight: The eSatin is heavier and much harder to ding than the HP Premium ID Satin. The HP Premium ID is very easy to ruin a print just carrying it from the printer or transporting.
Appearance: The eSatin appears to be a brighter, truer, white. The HP Premium ID Satin looks almost slightly yellow in comparison. But the HP Premium ID roll I'm using for comparison is probably at least 2-3 years old. The surface sheen of the papers is identical. Literally look exactly the same.
Gloss differential on the Canon ipf8300 is likewise exactly the same on the Lexjet eSatin as it is on HP Premium ID Satin. Very minimal. That's using my custom profile for each paper. Using the canned profile downloaded from Lexjet, the gloss differential is slightly more noticeable. On the HP z3100 there is no gloss differential at all on either paper thanks to HP's Gloss Enhancer.
Lexjet provides a really good profile for their eSatin for the ipf8300. The primary difference in their profile and mine was slight improvement in gloss differential in my profile. I also got excellent, near indistinguishable results when I used my profile I built for HP Premium ID Satin on test prints on Lexjet eSatin on the ipf8300.
I printed 2 photo jobs for 2 of my more discerning customers, color and black-and-white photographs for exhibition, on Lexjet eSatin on the HP z3100. Both customers loved the results and greatly preferred the heavier weight of the eSatin. These customers had used some more premium papers in the past (Hahnemuhle Photo Rag Baryta) as well as cheaper stuff (HP Premium ID Satin, HP Litho) and both seemed happy I gave them a more economical alternative while still using a paper with substantial weight.
Conclusion: I have a new general purpose photo paper. The Lexjet eSatin is less expensive than HP Professional Satin, and Lexjet sells 100ft. rolls of eSatin as opposed to only 50 ft. rolls being available for the HP Pro Satin. Both are 44" wide. Weight is the same. If you're looking for a heavier photo paper than most of the satin photo papers out there, or a less expensive alternative to HP Professional Satin, or a replacement for the discontinued heavyweight paper Canon used to offer, I would recommend giving the Lexjet eSatin a go.
I'm not affiliated with Lexjet. They looked after replacing a damaged roll very well for me and I've never had any problems with Lexjet. Lexjet would get a lot more business from me if they had some sort of minimum order over which shipping is free like almost every other supplier. That said, their eSatin looks like an outstanding product and easier on the wallet than the alternatives, even factoring in the few bucks for shipping.