Obviously yes, this is a dye-ink printer intended mainly for printing on coated (glossy, semi-gloss, luster) paper. Sure, that interests some and not others. It prints up to 13x19 inches, so IMO that puts it in the 'enthusiast' category, even though it is not a pigment-ink printer like the P600 or P800. Now onto a couple of the points that struck me as more interesting.
For the gamut, I suppose you could download the driver, unpack it for the profiles and examine them in ColorThink Pro - that's free and straightforward for those who have the application.
Yes, I'm kind-of hoping that someone will do that in the not-too-distant future. If nothing else, I find interesting the evaluation of the interaction of ink colors (both number and choices), printer resolution (ratio of dpi to ppi, i.e., how may ink dots to simulate each ostensibly continuous-tone pixel), gamut, and (getting more subjective) tonal smoothness.
Quite fantastic that there is NO information about the # of ml ink per cartridge. Judging by the price it's probably low, which means that the cost per ml is probably relatively high; but I'm speculating based on extrapolating from other experience. A whole methodological tract is available from Epson's website about how they test for yield per cartridge, which is interesting in its own right, but specifically uninformative.
That lack of information seems to be the norm in this class and below, with that information very difficult to get. In some cases the UK or EU support sites have such information, probably required by law or regulation, and
assuming that the cartridges contain equal ink (even when designated with different models), you get a figure in ml.* Also--and I realize this is getting less precise, especially in models with different inksets and/or resolutions--you can use page yield data to compare an older model with known capacities to a newer one.
* Example: the XP-15000 can use some of the cartridges made for the recently-introduced XP-8500 all-in-one (obviously not the light cyan and light magenta). The Epson UK / EU website (at
https://www.epson.co.uk/products/printers/inkjet-printers/consumer/expression-photo-xp-8500?search=XP-8500#accessories) lists those cartridges as 5.5 ml for black; 4.8 ml for light cyan and light magenta; 4.1 ml for cyan, magenta, and yellow; and for the XL capacity versions, respectively, 11.2, 10.3, and 9.3 ml. So it looks like Epson is trying to even out the prints-per-cartridge number for each color. And then if you just go to that ink page, it lists too the gray and red inks for the XP-15000, which are only available in XL versions, at 11.2 and 10.2 (not 10.3) ml respectively.