Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good for about 6 trips - blew apart at seams

I liked the mattress at first. It was large and relatively firm and comfortable. After about 6 uses in 2 years, it started leaking from the seams on the bottom. I was able to quickly repair each one with liquid nylon repair and nylon repair tape.Starting in my 3rd season, I blew it up to test it before using it and it totally exploded on the upper seam. I've already thrown it away or I would have video-ed the whole. Basically, an entire circle busted out.We were very careful where we placed the mattress and even put cushioning underneath it. I don't believe anyone would get more than 4 seasons out of one.I decided to go with a much more expensive but reliable (lifetime) Thermarest System -- 2 luxury self-inflating pads coupled together with their down coupler.