I've just got one simple point, I'd like to highlight. Just because an instructor has a white beard, and a relaxed manner doesn't mean he's been flying and teaching since the days ponteaus was a pilot. He may be 60 yrs old, learn to fly at 58, as a retirement plan, and is as quietly anxious about the first few lessons as the students. But again this doesn't mean that he couldn't be very good. I believe If your instructor loves what he does and wants to share that with you, as long as he also has credibility, what more can you ask for. Apart from insurance against the school that you paid over your life savings to, going bankrupt that is. Also don't except being shove around without a care. I only had one instructor, but a change can be a good thing, as long as it's a considered change, not a constant change of necessity. Sorry that was a bit more than one simple point.