My husband and I are in our early 30's and bought this to have some fun! It has been not only a great time but we've also been able to burn a ton of calories. There has only been one issue (squeaking) but when I contacted customer service they quickly replied with some remedies, which have solved the issue for the most part. (are your allen screws too tight?)
We love the trampoline. The only room for improvement would be to offer an even larger trampoline. (A taller net would be nice too! It can get a little sketchy when your feet go higher than the net!)
Great purchase, buy the biggest one!