Side by side the sun hut has no leaks...something that has turned alot of people off. I have 4x2 darkroom that is anything but dark with lights out. meaning there are plenty pinholes, zippers leak light, aswell as anywhere the material meets in the stiching. The sun hut looks and feels like the company was listening to the common complaints of their clientele. The darkroom I have has to be covered with u-haul blankets around all seems, it's a cheap easy fix for me. My next tent will be a sun hut.