I tried the hand climber last year and brought it back after smashing my face against the tree on a few occassions.
Never made it up the tree more than 5 feet. I watched their video and read instructions a few times, but the lever system never seemed to hold the rubber belt.
I tried a few things to help the lever situation and never had faith that it would hold me 20' feet high.
I have had 2 other climbers to date of the past 15 years, so I was looking @ the Lone Wolf as an expensive upgrade that failed.
Now I could lose 15 pounds but that would put me @ 165lb., so weight wasn't the issue!!

It is a nice looking and a light climber, but the most expensive.
I ended up bringing it back and getting a Summit and love it, API also has a nice climber, give those comanies a look.