This trampoline is very good quality for the price.  The only reason I gave it 4 stars instead of 5 is because while the instruction booklet is thorough, it is not laid out very well.  Because of this, my husband had to dismantle it twice and put together again!  So read all instructions first, and then assemble.  
Since our daughter is almost 10, we did not want to spend a few grand on the spring-free models, as she will probably only get another few years use out of it.  When I saw this one AND the price, I decided to take a chance and I'm glad I ordered it.  Highly recommend.