Lone Wolf Hand climber. It's well worth the money. I use a strap attached to the seat to make it a sit and climb. Works great and I think now they offer for it as an option. I got mine 2nd hand on E*** for around $250 it was used one time. I used my last climber for 18 years. While it may be a lot of money upfront it isn't a lot when you look at it over a period of time.
It is not the most comfortable stand out there, but for me the 4-5 pound weight difference between the LW and most other stands, ease of packing and stability outweigh any negatives including the price. I own 3 Gorilla hang on stands and a set of sticks but I never use them. I can set up my climber with less noise and effort and faster.