wI've read some good reviews of the Niff-T-Seat on their website, but would like a few opinions from regular joe's. Is it a good purchase? Do you still have to be against a tree or can I use it in a brushy area where there are no trees to lean against?

http://www.nifftseat.com/

I just use the one that has four legs that fold up and has a strap to put over your shoulder, It is comfotable and it will be replcing my turkey vest this year.