Does anyone follow Tizzie's routines?

We got this book and started Dylan at around 7 weeks and my only complaint is we didn't find this book earlier!!

OMG what a differnce, Dylan use to be a nightmare to settle, and often would be crying from 5pm until around 10pm before we finally got him to sleep (by rocking him)

Now we put him in his cot awake at 7pm and most nights he is alseep by 7:10pm with no crying at all. It's unbelievable....Where he use to wake every 2-3 hours during the night, now he has a dream feed at 10:30pm and only wakes once during the night at around 4am and then goes right back down until I wake him at 7am and start our day..