I had one and didn't like it. Too much bulk and too hot in the early season. I have the Muddy harness and love it. Combine it with a Primos Bowhunter Vest and you have the best of both worlds. Just my opinion...
I tried one on not long ago. It is basically the Muddy without the bino straps. The buckles are different and I got the feeling it would not be as comfortable when using the linemans belt as the back support is much less than the Muddy...
Whatever you buy, don't be afraid to wait until next Friday to check some of the bigger stores. I search ebay for them too if I have a specific item chosen already and I am price shopping.