my criticism of waldorf comes from watching my stepson learn to be mentally lazy and not read at the age of 9. everything else has already been said. if it was my choice, he would go to public school next fall. he has been in waldorf preschool and school since the age of 3 and he has learned very little. huge disappointment. maybe it is just the waldorf he attends. i don't know.
From my limited experience I'd say that is an unusual situation as one of the things that I really like about Waldorf (sorry wrong thread as this is the critisisms thread!) is that it fosters the desire and love of learning by presenting it in a fun, imaginative and age appropriate manner.
I also think that if anyone feels there is something lacking in the education, that can always be supplimented at home. For example, my daughter turned 4 last month and she already writes and is stating to read. This was all lead by her and due to her asking questions and having them answered.
Personally, I'd rather have to do some extra work at home on teaching (when appropriate) rather than send my daughter to a state/public school for a variety of reasons I won't get into here as it's not the "public school critisisms" thread!