It's not a "flagship" but it is fully featured - nothing spared - and half the size of my palm. The screen is just small enough to be too annoying to do anything really distracting on. I have gotten NOTHING but compliments on it since I started using it a month ago (on a reco I picked up here).
These are top of the line phones, but they're very solid. Unihertz is making some good devices.
Size profile is basically the same as an old school Blackberry. No problems with it.