Rating: 4 / 5
Excellent quality. A nice affordable waterproof bivy. I didn't like the bug net design.
My main problem is that the bug net causes the upper flap to flop onto my face too easily. To sleep with the bug net closed and the flap open, one folds the top flap down onto one's chest. The bug net stretches from the the bottom flap beyond my head to the top flap folded down on my chest. The netting rested on my face. (A mosquito stung me through the netting where the netting touched me, so I used a small hoop to prop the netting about 2 inches above my face.) Unfortunately, when I tucked my hands back into my sleeping bag, the stretched netting pulled the top flap back over my face. If I managed to keep the top flap over my chest, it still may flop over when I stir.
I also couldn't understand why there are loop placements on the top flap. I couldn't use them to stake down the bivy and still get in and out.
Breathability must be pretty good. I dried a shirt and socks by wearing them to sleep in this bivy. On some cold nights, I got very minor internal condensation that is not visible to the eye, but felt wet to the touch. I'm not sure if even the best bivy can avoid this.