I use mine almost daily. I carry a work tote and it goes in my work bag so I really use it a my purse once I get to work. I have three so I switch between the three.
I love WOCs! I have about 3 and use it only when I'm on vacations or going out to dinner and a movie. It's small enough to hold in my lap. If I had a regular size bag with me at the movies, then I would want it to have it's own seat. These days, the movies are sold out and jammed pack so I just don't want to get stuck holding a big purse in my lap through the entire movie.
I don't have the WOC but I do this with another bag that is meant to be an actual bag. Sometimes I'm just too lazy to remove everything and so I just put it in a bigger bag!