I have two, one bargain-level and one "commercial"-level. The commercial has three tiers to the roof, so it vents a lot of heat and the fabric is much thicker, but it's heavy as hell and over twice the volume as the bargain one when they're in their packing cases. On one tent camping trip where we were completely soaked trying to assemble our tent (and the inside had ~1/2" of water in it before we got the rainfly on), someone told us the secret to always set up the EZ-Up first, and then assemble the tent under it.
