I have been using a Lone Wolf sit & climb, this season. I can't imagine another brand that is as quiet, solid, and easy to use, as this stand. They are expensive. However, Lone wolf stands are made in the USA in Illinois.
I'm over 60 years old, but have no trouble packing the stand in, setting it up on the tree, and climbing. I wear a harness, and keep hooked up while climbing and sitting.
Using a climber can really be an advantage for hunting deer. It doesn't take long for them to pattern a more permanent stand. I scout for suitable trees, and can set the stand according to deer movements, wind, thermals, etc.