Too basic in functionality
If you are looking for a quick way to change your Mac Folder icon from boring blue to something fun then Folder Iocns adds 316 folder icons to choose from for only $1 buck. I REALLY wish there was a way to add new images to the folder collection. The manual steps of opening a JPEG in preview, select all and copy, and then doing a get info on a folder and choosing paste into he upper left icon view aren’t listed in the help. The help screen should come up on the apps first launch because the step of dragging your folder to the lower left corner isn’t intuitive. Why can’t you just drag the folder to the folder image you want? The Folder Icon window floats on top and so it blocks you other windows including the finder window, the about window (but not help). If you are looking for a more full featured folder app check out Folder Factory. It doesn’t have the 300 icons, but it has full customizability to let you take any image and turn it into a folder icon. Something this app should look at adding.
Riptide360 about Folder Icons