Adobe Suite programs are sort of modular and boxy. The format works alright, but other than the tool bar, it feels more text dependent because there's little to differentiate one to the next at a glance. You get used to it but it's not particularly inspiring.
I like the ArtRage interface because it feels more like an art set up with taborets and palettes and all that.
Glad you like AR. I think I first found out about it by tripping over it when surfing the web way back when. Been a fan ever since.
"Not a bit is wasted and the best is yet to come. . ." -- remembered from a dream