I'm writing this review from the point of view of my son having only had the trial lesson and so I can only comment on our short experience there. After expressing interest in the programme, Mary rang to arrange a suitable trial session for my son. Our sessions are 1 hour but with an initial 15 min pre session with the tutor. We had Tom for that session and he was excellent with my son, who really seemed to enjoy his time learning how to hack and he was engaged for the whole session and progressed well. We've signed up for the weekly sessions and it was great to have Mary on hand to ask about the membership and the classes - a quick text or phone call and it was all sorted out. I am confident that this is going to be just what my son needs to progress from using scratch to using python