so.. what's the bad stuff about montessory?

I read all the waldorf threads, and saw the good and the bad.. now, I didn't see the bad stuff about montessory. I want to know what you DON'T OR DIDN'T like about montessory, not comparing to waldorf neccesarily like the waldorf vs. montessory thread, but just the things you don't like. I am looking for a pre-school for my dd, now 3 years old.<br><br>
thanks!