Amy, yes there has been a change of principal in March 2012. The previous one has opened her own bakery !
The new one seems very competent, she is friendly, takes the time to meet you when you ask for an appointment, I find her helpful as well. Not that the previous one wasn't but they are 2 different personalities.
I like the Wooden floor, the big garden, the organic on site kitchen, the Montessori approach without ostentation and of course the cameras. I do use them at least 3 or 4 times a day. It allows me to feel less guilty, to be a working mum, and take part in my son's day. Also when I mention that I have seen this activity or that other thing, staff feel that parents are indeed interested in their job and that makes a difference in term of relationship and feedback. I must admit I sometimes use the tool as a gentle way to say 'I am watching you'.
Regarding Baby room key person, I am afraid I cannot comment as I have not met them for a long time. Zoe, long dark hair in her 20ies and Rose Mary were my favourites but It was about 2 years ago so I don't know if they are still in the baby room or not.
Hope I have answered your questions. If not please feel free. I am expecting my second, and there is no doubt in my mind that she will be going to Active Learning as well as soon as I find a new job.