I've been on a weightloss plan since last year and doing okay with my progress. My daughter bought me the 40" trampoline for my birthday. I loved it, but within 2 weeks, one of the springs snapped off. My weight does not exceed the 300 pound stated weight limit so I was very disappointed in the product. Overstock sent me out a new spring, which I replaced and a week later 4 spring broke. I used this product twice a day for 1/2 hour each time but it can't even withstand me just jogging in place on it. I've had the product less then a month and now Overstock's having me exchange the item to see if the first one is faulty. Beware if you weigh 200 - 250 pounds, this product does not hold up well, at all.