awty, that particular Epson paper has a gentle texture that doesn't reduce details (the way some matte paper does). As well the white is bright, but not chemically brightened (so it seems unaffected by age). I like the weight better than that of Canon Luster (I don't know who makes that for Canon...might be Hahnemeule). The Canon's luster texture sometimes leads to extra detail contrast...similar to Gold Fiber Silk, which is more expensive.
I happen to have a few hundred 13X19 sheets of the Canon, so I've got to love it. Also, bought directly from Canon or from B&H, shipping is usually free and very fast. Can't get Epson from Canon.