myfriends followed it with their two daughters and said it was the greatest thing ever. They did have two very contented babies. Although their babies were content, it only worked if they followed it to the precise munute, for instant aftyernoon nap was for 1 hour in the cot, starting at 2pm. It meant that shopping trips, days out were totally governed by naps/feeds
We wanted a routine but also wanted a fairly flexible baby that would nap wherever and whenever it wanted to, which is what we got!!
I agree with Sammystar - it has some good ideas but follow it loosely!!!