Finally installed it, (not hard) & been using for about 3 weeks.  We have high water pressure, so took a little getting used to the knob, & how slowly to turn, but I am in love with a bidet, now!  This was a first for me, and no returning.  No more Pampers needed.  Toilet paper use is similar, as you DO have to pat dry, but much cleaner!  When this quits, I will definitely purchase again!  Hope it lasts a loooong time!