The Ugly 1:
I'm not gonna lie, I prefer Mac OS over Windows. I developed ShopShaper on a Mac and think that it looks best there.
On the Windows version there is this ugly bug I was unable to fix: when you click on the x (remove button) under an image box either there appear more x's or somehow the background of that part changes and shows some part of the screen. Weird weird
Have you discovered anything ugly yet?