Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Not worth it

I've had this model, in black, for about 2 years - I used it twice each year with my cub-scouting son on overnights - nothing more. I used it last week and discovered that it has a leak (large enough to deflate in minutes when being used). I've used it 3-4 times total! Also, I agree with the other reviewers - it did not inflate on its own, and was not very comfortable when inflated. A real disappointment considering the cost.