Epson’s own Archival Matt paper results show virtually no change - which after three months in direct sunlight is a really excellent result. There are very small losses in saturation at the yellow/ orange / red end of the spectrum but blues and greens look unchanged. You have to look long and hard to find any signs of fading at all, and, importantly there is no swing in colour balance either. Interestingly the only other paper I tested with the Epson 2100 this year shows identical results - I’ve yet to find a paper that shows serious levels of fading with the Epson 2100.
There don’t appear to be any losers in terms of fading with the Epson Stylus Photo 2100 / 2200 - Overall results look unchanged after three months in the sun. This printer has other disadvantages - can’t print on glossy paper and metamerism in particular - but if you want your pictures to last this is a great photo printer.