Painter 3D has serious seam problems when painting on the model. People have work arounds by using floaters and selections to keep this under control. I searched hither and yon for Painter 3D and finally got a copy on ebay. I think Painter has a steep learning curve as well and may be good for certain types of maps, but not for others. I haven't spent enough time with it to learn all the inns and outs. One good thing is that if supports multiple maps. I also have UV Mapper Pro. The only disadvantage to that is you can only apply one map at a time to the model, so models with separate head and body maps can't be previewed together. I had problems when working on a really high resolution map with updating my model's map. I had to save the file at different points and then reapply the map in UV Mapper Pro to see how my work was progressing. I think the problem had something to do with the image being too large for Window's clipboard. The programs originator had no explanation.