Has anyone used the Go Lite Ultra-lite poncho/Tarp? I could get my pack down to 7.5 lbs If I dropped My Mountain Hardware sprite tent and used the tarp (10oz) instead. I have never considered using a tarp, I like the security a tent offers plus protection from the wind and rain but the tarp would allow me to move faster and spend less time setting up camp.

What experiences good or bad has anyone else had with a tarp?