I bought one about 5 yrs ago, I love it, it's held up to a lot of use. I'm tall so it's been a real backsaver ! You can leave one side up/one down, when it's all folded down it takes up very little space.
Looks like they've changed the design since - mine has just the one swing out leg on each side. This newer design looks sturdier. I've also seen some that have storage shelves in the middle section, not sure if those are Joann's or not ? :)