I only have a couple of days since I bought it but it feels OK to navigate with. Rotation is a little PITA when you are zoomed way in to color a face. I guess the hotpoint is default to object center instead of last face painted.
The ring was rendered out by itself smaller and then I made a new doc in PS that was 1000x1000 and dropped it in the middle. I scaled it up a little bit and then used a couple filters and layers so it did not look to bad. It's that size since I have it on my desktop.