We purchased the 13x13 jumbo square trampoline about 10 months ago. We purchased through our local Rainbow Play Systems dealer, which offered free delivery and set up. I honestly can't say enough wonderful things about this trampoline. It's large size is plenty big for multiple kids/adults to be on it at the same time. My kiddos, ranging in age from 2 through 8 at the time of purchase, absolutely love playing on it! Friends and neighbor kids love to play on it as well. And what wonderful exercise I might add.
I will admit that we had noodled on this purchase for a couple of years. We've always heard such bad things about trampolines and all the injuries that come from them. Last summer, before we purchased ours, our kids when to a friend's home for child care. She had a cheaper 'spring-like' trampoline, which my kids were always coming home with injuries from it. But once we saw this one in person at the Rainbow store, we could clearly tell it was of high quality and build with safety in mind. We've only had to incidents on ours. First, the kids inadvertently left the net door unzipped while jumping and someone fell out. Secondly, when getting off the step ladder, there foot slipped and they bruised their shin. Fortunatey nothing serious though. They were actually good lessons to learn as I notice the kids always zip the net now and are more careful with climbing the ladder.
We're so glad we made the purchase. It's great exercise us parents and the kids. If you are stickler for safety and quality, then this is the match!