At $50, these aren't cheap.  It's a good product, but I don't think it's necessarily a $50 product.  But I'm glad I bought them because I've been wanting to get them for a long time.

They are very long.  I ordered a small for my wife, who is 5'2", and just like the picture shows, the legs are on the ground.

The back hatch is more for looks, as my wife has to take the whole thing off to use the bathroom.  Also, if you didn't, I imagine holding the flap from falling in the toilet would be an issue, as well.

The back hatch also has semi-thick buttons that could cause a comfort problem if they were digging in your back while sitting in a chair.  And the buttons don't unbutton that easily; it takes two hands and a bit of effort.

The bottom line is, these aren't the best, and they are expensive, but if you think these are cute as a button and you have to have them, then order them. I gave this 4 stars because I like the way they look, but I feel a little guilty doing so.  If this product was more like, say $25, I'd be more enthused.