Ours are Coco Bidet seats and our friend installs them when he sells it to you. Reasonable and, while not exactly a luxury, it's a nice addition as we age. A good item for people who are becoming less flexible, or are handicapped in some way. Plus, the fresh feeling is incomparable!
And I agree, I can't wait to see how the thread goes either. (that's the imp in me, which is why this is my very first thread post)