I only have a Lone Wolf, but I highly recommend it. It can be leveled for leaning trees, and does a pretty good job on side-leaning trees as well. And I find it to be very comfortable. It is extremely stable and silent; you can focus entirely on shooting.
I'll add this about the ladder sticks. I used them for two different sets this past weekend in IA (came darn close to getting shots at several nice bucks) and when I released the straps on the sticks, the sticks remained in place. In other words they bit into the hackberry and maple that much. They certainly wouldn't have supported your weight without the belt, but by digging in that much, they were very stable to climb. No regrets whatsoever spending the money for the combo.