I personally find the ones with the bar too restricting, at least with my 62" bow. I have exactly the tree stand you posted, and I like it. Sure it requires some fitness to use, as compared to the more common ones with the bar, so you'll probably need to work out a bit, at least if like me your job keeps you 8-10 hours per day behind a computer screen.
I also have a hang on, which I like. It gives me even more freedom than the hand climber, but it's heavier, and also you can only go as high as how many sticks you can take along. I consider them both an excuse to keep myself in decent shape. In the end, you'll have to decide what works best for you.
Hope this helps,
Max