Bill's Defensive Driving School

Big fan of Bill's Defensive Driving in Pinole (http://billsdefensivedrivingschool.com/).  Bill himself was the instructor for my daughter in 2016.  Their policy is to conduct the required 6 hours of training WITH you (the parent) riding along, which taught me a ton of things & made me a better driver and a better coach for my daughter. (This also solves the creepiness question because you're right there -- Bill is totally not creepy!)

Before I heard about Bill's, my older daughter went through the training with Safestway in Walnut Creek (http://safestwayds.net/) in 2014.  As with Bill's, the instructor comes to wherever the student is and picks them up.  Her instructor was Carlos and she really appreciated his patience and calmness.  

Note: in both cases I remember being frustrated trying to reach them by email. The phone worked a lot better.