Possibly moving from US to Puebla, MX. Need advice.?

My husband might have a job opportunity in Puebla but before the offer is official, we want to make sure we've covered our bases by doing as much research as possible so we know what we'd be getting ourselves into if we accept the offer.

First things first, what is the housing situation like? Cost of housing? Rent?

The employer would cover the cost of private schooling for our kids so we're going to send them to a private school. So far we've only found one American private school in Puebla. Is there only one? Are there (non-American) private schools I should consider? Our children are quite young (5 and 3).

Transportation: We've read on various websites/message boards that it might be better to utilize the public transportation because the city streets can be crazy, is this true?

If you have any other advice, please share it. Please don't tell me that we wouldn't like it in Mexico because (insert incredibly rude or stereotypical reason here). I am of Mexican decent myself (raised in a home with Mexican traditions and values) and my husband has lived abroad before (the language isn't a problem). We know that Mexico isn't the same as the United States and we wouldn't be considering this opportunity if we didn't think we could handle living abroad.