I bought this specifically for the tank of warm water.  I did not want the on demand bidet because my friend told me (and reviews mentioned as well) that the first burst is cold before the water becomes warm.  I am undergoing chemo and the side effect of one of the drugs is sensitivity to cold.  I can't wash my hands in cold water, it has to be hot.  My old basic bidet uses cold water and it was like pins hit me when the cold water touched my skin.  This bidet is perfect for my immediate needs.  The seat warms up upon contact and the feminine wash is very nice.  I didn't think the drying feature was practical and I have not needed to use the move feature either.