Free: Contests & Raffles.
Bad, tougher to hide from people. Less visibility than a tree stand, gets dark sooner. I think deer are more nervous about the "little sounds" from ground level than from a tree.Good, scent control (so much that it's barely an issue), more comfortable seating, no wind to make you chilled, all your stuff is there and nothing can fall 20' to the ground, you can move more without being spotted.