I was so excited to install this faucet in my kitchen until I began to do some further research.   It appears that this is the second iteration of the Delta TOUCH20.  
Many people experience a variety of issues within the first 6 months of installation.  From the touch operation is not responding to the faucet turns on without any one around.  It’s seems as if this faucet is more gadget than functionality.  I can see the allure of all the bells and whistles, but at the end of the day, you just need your faucet to work properly.  Without routine maintenance and battery replacements.