Once you practice a little, the Summit climber requires very little physical effort to climb & descend.  Those who think it's noisy or hard are simply not doing it enough to become proficient.    IMO, the Summit climber is actually easier than climbing a ladders stand, and safer to if you don't use a safety harness while climbing/descending your ladder stands.

The longest learning curve with these climbers is learning how to pack, unpack, then attach to tree, all while being totally quiet.  I can do this 99.9% of the time now.  But at least half the time when I climb a ladder stand on a cold morning, there will be (beyond my control) a loud metallic pop that deer within 1000 yards can hear.