Very high quality. Easy to put together, but you have to be really strong or have a tall ladder. The hard part is the 6 springs holding the top of the cage up, the rest is easy. I used a ratchet tie down to pull the top of the safety net to the cage poles so I could snap the springs on because I don't have a tall enough ladder. The nice thing about this shape is that when you bounce, you stay in the same spot on the trampoline. The circle ones project you to the middle. With this trampoline, you're less likely to slam into each other if you have more than one person on - (by the way, I don't condone that, but kids will be kids). Anyway, the quality is the best I've ever seen, well worth the price. The cage is sewn into the mat so you can't possibly fall through the springs. Thick steel all around including the cage poles.