We took lessons at the Cheryl Burke studio in Mountain View. Our teacher was Jet'aime. She was great - she choreographed our entire first dance from the entrance all the way through to the exit. She even made sure we were
facing the right way the whole time.
In terms of timing ... we did a group lesson of beginner's waltz in June and then took July off. Then in August we started seeing her twice a week. Once a week just wasn't enough since I knew DH and I wouldn't practice at home.