With help from parents, I purchased this for my elementary P.E. classes, and it is a huge hit! My classes love it, and so do I. The size is incredible...plenty of room for all the students! I have had up to 30 students in it at once. We have used it 15 times with over 150 kids in K -3, and so far it is very durable. I can easily set it up and tear it down every day. I couldn't fit it back in the nice bag, but I roll it up from each side to meet in middle and store it in a large tote.The velcro door works really well. The walls are very tall (which is great), but it is hard for kids outside to watch. I ended up setting it up beside our stage so kids could look down and watch. Works perfectly! Definitely a great find!