Signed up a year or so after they launched. Just over 190 commission to date. I average one or two sales per month so not the daily adrenalin rush you get from a subs site like Shutterstock. The difference is most of those sales are medium/high res sales that pay 4 and 6 commission (40%). That's equals quite a few sub sales. Selling for me are my archive political images (Tony Blair etc) and UK location shots (Hastings pier etc). Sold one of a Greek island last month but that was the first non UK image I'd sold there. Obviously, only my personal experience with them and cannot speak for anyone else. They are, and will continue to be, part of my upload workflow and those less frequent (but higher paying) than microstock sales add up. Regards, David.