This case does an excellent job of protecting the Treo. I've had mine go flying several times, with absolutely no damage. The buttons and controls are easy to use while the case is closed, and it is an attractive case to boot.Two minor problems- First, the clip attaches to the case via a metal post that has a knurled edge for ease of attachment. Unfortunately, these edges are sharp and hard and cut through the clip. I sawed through my first plastic clip in under a week. I ordered a replacement (they come in two-packs) and have been careful putting it in and out of the clip and haven't had the same kind of problem, although I can definitely see the wear pattern on the clip.Second, the metal retaining clip of the case (which does not mar the Treo at all, due to some very good neoprene padding) comes very close to the Q, A and P and backspace keys. This is particularly noticeable when trying to type one-handed.All in all, though, an excellent case.