The sizing tool obviously has some clipping issues but that's common problem for creator games. Sometimes when you select an item, there'll always be some random mis-coloring behind it (like tiny spots of green behind hair). The last item I noticed was the paint tool. Easy paint works fine, though it is annoying to see chest fur and hair are linked together (and, weirdly, the character's cock turns blue along with the eyes sometimes 0-0), but the Advanced Paint is in need of serious work. It does work, technically speaking. Only it paints everything but chosen patterns and can't be erased at all. Even trying to paint over it leaves huge streak like marks and the entire fursona is a mess by the end of it. You then need to restart the program otherwise ALL of the painting cock-ups you made linger on every single template from there on out. The first two items aren't really a problem but the third is probably the only serious problem I've found with the maker. If that's fixed, I can't say there'd be a problem with it.