Bidet toilet seats?

OK, I know this is really off topic from EL but I was researching these toilet seats for our new home and thought our community of out of the box thinkers might have some info. I would like to know if any of you have one or know of anyone with one and what they thought. I have lived in Europe and loved the stand alone bidet. I have Crohn’s Disease, those of you who know the disease know about my problems.

I would consider buying from outside the U.S. for the right price and warranty.

Here is one that is pretty expensive:
http://gizmodo.com/236933/kohler-c3-series-toilet-seats-offer-hands+free-butt+washing-american-style

Thanks,
TL