I tried the disposable version a while back...I can't think of what they're called but they are sold in our grocery store. I hated them because they leaked terribly! I might as well of not even been wearing the thing.
It did well as long as I didn't do anything to make those muscles contract (i.e. coughing, sneezing, going to the bathroom, just flexing those muscles...) I've been meaning to try a lady cup or a diva cup but I've just never got around to ordering one.