The amzer case is really good if you have a screen protector. It kind of leaves indents on my Aria, so I don't know if it'll scratch the glass. Best to get a screen protector regardless.
People say the case sucks because it's hard to take off, but theres a trick to it, just pull from the bottom left edge of the front frame. I've dropped my Aria almost 12 times. Still perfect, Its been 6 months. The matte finish does get worn though.