Treestands are like bows; you have to try a bunch of them before you find the one that is right for you. I have found that most are a compromise of some sort - easy to climb, comfortable to sit for longer periods, easy to shoot out of, light weight, etc. I love the light weight, ease of climbing and the self-leveling feature of my Timbertall, but find that I just can't shoot with the bar of the climbing portion in front of me. The self-leveling is more important for the foot portion since you can generally readjust the strap on the climbing portion of most stands once you are at the desired height. Therefore, I married the bottom portion of my Timbertall with the top portion of a Lone Wolf Sit and Climb. The entire thing is light weight, quiet, very stable and easy to climb and shoot out of. The only disadvantage is that the seat isn't as comfortable as some, but I can still sit for several hours without discomfort. Some will ask why I don't use the bottom portion of the Lone Wolf. That is an easy answer - its too heavy and I can't level it when I get to my desired height.
I am just a tad older than you and use to use an open front hand climber top. I found that as I get older I felt less safe with that arrangement when climbing and much prefer the sit and climb method vice grabbing the rails of the top climbing portion to pull myself up. That is more tiring and I really like being able to just sit back on the bar and rest when I feel like it.