Good lord - is someone really suggesting that CC leads to Xbox use and social networking?
unbelievable.
I agree CC is stressful for a baby. However, it may well also be stressful for a baby to wake up at night, multiple times, and have to cry for someone to come and rock/cuddle/feed them back to sleep, because they don't know how to go back to sleep on their own.
And CC does involve soothing the baby, at intervals. (the version i used involved going in and soothing every 2 minutes). It is not the same as CIO where there is no soothing.
I do not agree that a baby whose parents have done CC "has learned that nobody comes". We did CC and my DD will still cry if she is hungry, has teething pain, etc. and we will come and comfort her. She just does not cry simply because she has woken and needs to be rocked to get back to sleep (which she did before CC).
In answer to the OP - it took one morning nap and one lunchtime nap. DD then slept through at night. She does still wake sometimes, but as I say above, it's due to genuine hunger or teething pain or a cold.