I just bought an assault a month ago,because I intend to cover quite a bit of ground with it.I believe they are weight rated beyond your weight.If you are covering significant distances and putting it up and taking it down a lot I would purchase the assault.If you are not doing those things than the Alpha makes more sense.Sportsmans guide is having a great sale on the assault right now $120,they usually sell foR $180.You will definitely want to supplement the seat with another cushion for longer sit's.