Very bad assembly.
One pipe had a problem. It didn't fit with the others.
The holes in the pipes don't match the screws.
Their construction seems careless and very superficial.
The construction is very troublesome. I would not recommend it.

I didn't give it 5 stars because the net it has is made of cheap material. It got cut on the second use. I patched it up with a sponge, but I consider it unacceptable for it to be cut so easily. It is not at all durable. Also, the instruction manual on how to assemble it is simply unacceptable. 5-6 blurry images that don't help at all. Ask them to send you a link with a video from YouTube. Also, the black rope it comes with will confuse you on where to place it. Besides these two issues, it is perfect as a trampoline

The assembly is simple following the instructions. The only problem is a rope that you can't understand what to do with from the black and white brochure. Eventually, with a little imagination and 2-3 videos on YouTube, you understand.
My daughter went crazy on the first day and couldn't stop playing with it. I believe it will be very beneficial for her physical condition and her balance development.
Edit: after a few weeks of use, my daughter has become a champion. I think it's worth it, especially during times of quarantine and lockdown, they can release their energy inside and come out calmly haha