I kinda like the "Bootcamp" title but then I love the gym so it's a term that doesn't bother me. The price seems OK but my gym membership is much less ($60 a month) and i can go everyday if i wanted to plus it includes measurements, a program and the membership starter pack type stuff like water bottle back pack etc.
For Mums who don't like a gym environment and are looking for a small class and to meet other Mums then it's a fab idea. One of the girls at Playgroup who is a personal trainer has done the exact same thing, she has 2 different groups with about 6 people in each time slot, some go once per week and some people go to both. It's an adults only though as she uses the session as a chance for the mums to get together for some 'me' time. It's something that Mums often don't get. We're usually too caught up in our families to realise it though so the girls who go love it and the time they get concentrate on themselves.
Good on you, i hope it goes really well.