Like most things, treestands are a compromise, and a ladder can be a great choice in many situations. I don't like the cheap ones, tho. I stand as much as I can and insist on a fold up seat and a platform that goes all the way to the tree.
Pa, don't neglect to wear a full harness and a full length tether line from the ground all the way up is the way to go. Just go read Barry Wensel's "Close call" thread.
Kevin, thanks for your report on the Rivers Edge Oasis; I've been thinking about one of those.