5.5 framed vs 6 gallon frameless (Petco tanks)

I'm looking at these two tanks. I'm a bit concerned about leaks/cracks, and so not sure if the frameless is really worth the hassle. Or with a tank this small I'm concerning myself with a non-issue.

Thoughts?

Imagitarium Open-Glass Aquarium Tank, 5.5 Gallon
Imagitarium Open-Glass Frameless Cube Aquarium Tank, 6 Gallon