We had the opportunity to be a part of a start-up program as well. On the surface, it seemed amazing and perfect for our son. We were concerned because of the newness of it all, and there were a lot of details still up in the air. The program needed at least 5 families, preferably 8-10, to start the program. We had about 7 families who were on board and "very seriously committed" to the program. Ultimately we chose to stay at the Montessori school our son was attending as things were going really well and we were reluctant to put him through another change (he'd just started there). Long story short...all but two families (one being the director's child) pulled out at the last minute. We definitely made the right decision. We finally just decided that our son wasn't going to be the guinea pig, and if all went well this year, we'd consider the switch. It never even got off the ground. I think you're making the right decision. It will be good to be able to make a more informed decision once the program has been in effect for a year. That said, we were VERY tempted, so I understand why you are torn.