Anyone got one?

Seems like they're rising in popularity in North America. I know in Europe they're everywhere but I've never actually tried one. All I know is that some days it's like wiping peanut butter out of a shag carpet. Wipe as you may, it's really just not that clean unless you shower.

Seems like there are some really easy to install, inexpensive models that hook right up to your existing toilet. Wondering if anyone has tried one? How easy did you find it to install? Are these cheaper toilet seat ones still as great as I'm hearing?