RE: How difficult should a climber be?
Climbers, although it takes practice like anything else, can be used quickly and efficiently. I own one am able to get up the tree in I would guess 1-2 minutes max. I am however 18 and can move pretty easily. Getting it set up takes probably 3-4 minutes, so in all, taking it off your back until your up in the tree I would say about 5 minutes. I have mastered mine and am able to do it nearly silently now and very fast. I would suggest practicing before taking it out in the field. Find the secrets of making it quite and quick.
Mine has a cable lock system and I love it. You cannot beat the portablity of a climber. I hunt here in our timber and nearly 120 miles away as well so it's nice being able to have the mobility in one stand instead of having to put up 5 climber and pay for all of them, and risk them being stolen. With a climber you can move to where the deer are in a matter of minutes.