The ease of use is great! I was able to get exactly what i wanted with very little tweaking or modification after seeing it online first time around (which took about 30 minutes). There are some limitations in terms of how much text can be used within an icon so make sure that's something important before going through this process as well - but otherwise there were no issues at all working from their site. We're using them now because we need icons created quickly without having our designer log into each account every single day/week etc., which would have been too cumbersome if not impossible.