Overall, I've had very good experiences with this bivy so far. It has performed well in inclement weather. I've stayed dry in light/moderate rain overnight (wasn't continuous). I also stayed dry when camping in a partial snow cave (not a lot of actual precipitation, just mostly snow melt drip). The breathability is limited in this fabric, but that is the nature of bivy's in my experience. The material is also thin, so just treat it with respect and you'll do fine.