How I love my Delta Touch2O faucet.
We had to have an additional hole drilled so that we could install it. Most of the videos/blogs talk about how it is a big pain to install. But I found it quite simple. We don't have a lot of room under the sink but i was able to get it done by myself in less than 1 hour.
Also we read that there are issues with the batteries draining quickly and needing replacements often. We have had the same batteries installed for over 1 year now. It is used everyday by 3 sometimes 4 people.
I cannot wait to get one for the bathrooms!