Easy to use & quick setup :D
First I had though that it would be alot of work to implement.
I was afraid to say the least, but I just had to drag & drop the the downloaded files into the FTP and copy & paste 1 line.
Very useful feature for boards that have extensive subforums where a distinction for the user is necessary. also is great to have custom banners for wiki, gallery, chat, etc. in order to make it really feel like a community than just a forum.