Yes I had one and agree that the prep is the worst part. I had to drink awful stuff that actually, as I recall, had a salty lemony flavor. UGH! If it tasted better it might have been easier to get down. Then, of course, you dare not venture too far from the bathroom after drinking that. The feeling afterward of hearing the words "everything was fine" is worth all of it though. Moosmom, please don't put it off. It will be over before you know it and, as others have said, the testing itself is done while you are in LaLa Land.