Bought this for my 7-yr-old's birthday. He practically lives on it now. It seems sturdy enough for an adult to jump on as well. My husband (160 lbs) and son play on it together.The things to note:1) It was a little tougher to assemble than we thought. One of the pipes had a dented end. My mechanically-inclined 7-yr-old somehow got the dent out with large pliers.2) I'd recommend a different screwdriver than the one provided. It was very difficult to get the screws in place with the one provided but relatively easy when we used our own. I think the provided screwdriver is either the wrong size or maybe too shallow.3) Getting the frame pieces together tightly can be tricky. Sometimes a small rubber mallet helped.4) Neither my husband nor I have a lot of upper body strength, so stretching the trampoline mat into place was very hard for us. We'd have to hold the rest of the trampoline in place while both of us pulled on the mat/springs as hard as we could (yes, we placed the springs in the order directed). Sometimes we still couldn't generate enough force between us.What I ended up doing was grabbing braided Paracord (enough to hold my weight), threading it through a rung in the mat, making a long loop by tying a half knot that was stable but easy to undo, and placing the loop over the frame of the trampoline. Then, I stepped into the loop to use my body weight to pull the mat while my husband guided the spring in place. This would be a lot simpler for people with enough upper body strength to just pull the springs into place using the provided hand tool.5) Keep the spring tool. My husband jumped on it first to test it. The first few times, a spring popped out and we had to put it back. This problem seems to have resolved after the first day or so.Despite these minor issues, I feel like the trampoline was a good buy. We've had it assembled for about a month with no more notable problems