I've owned several Big Agnes tents over the years and recently upgraded to this 2014 edition of the Copper Spur UL 2, after having gotten several years' use out of my older model. I've tried several other brands of lightweight backpacking tents but I'm staying with Big Agnes, due to their excellent quality. The CS2 is a generously proportioned 2-person tent, lightweight considering the side door (a must for me), and a snap to set up/take down. My Big Agnes tents have kept me dry and protected in hours-long Sierra rainstorms, held up well in harsh winds, and handled being pitched on gravel, rock, duff, sand, etc. with no damage (I always use a footprint). I expect to get many years of happy camping from this newer version of the CS2.
This review was written in the old system and had content requirements that are different than reviews written today.