Got one a few years ago for myself. Then my wife sat in my seat and I had to get another. I don't know about the cost issues some say--a crazy creek chair is 40-45. I paid that for my chairs. The Bench seats  are $60 and you can find them on sale at Hoigards or Midwest usually.

I have never had a problem with the straps loosening. If you did not have a problem before with straps on the Crazy Creek you should not with thuis seat either. It is very adjustable both in height and support. Defintiely a luxury item.

I tried the Crazy creek and they just never were that comfortable to me.

Weight wise about the same as a crazy creek much lighter than a sitbacker.

With all that said you really need to try one before you buy. I tested one out at a Midwest Demo before buying.

T