I've also got the Incipio NGP, which I really like as well. I use that one when I'm home and the Switcheasy/Smart Cover combo when I'm out and about and need to put my mini in a bag.
The Coverbuddy is a cinch to put on and take off -- pop it in button-side first to put on, un-snap the non-button side first to take off. It's a snug fit but not difficult to remove. I haven't seen any scratches on the bezel, though I do have the white/silver model and not the black/slate.
Here are some pics I took this morning that shows the Coverbuddy and Smart Cover truer to color: