S9170 owner. I have had it now for 3 months and absolutely love it!! Came with a 1 year subscription to Onyx Go Plus. I upgraded from an old Mimaki JV150 and I am truly blown away by the speed and quality of the Epson. Ink cost is cheaper than my Mimaki even though I was using third party inks. I think eventually I’ll grab the S8170. The white ink option is pretty nice, but you do waste a lot of ink switching from 10 to 11 and visversa.