I don't particularly like Rosey as she comes across very smug.
But my daughter has slept reasonably well since about 8 months and very rarely wakes. We're VERY lucky but it makes me kind of sad that people think we must have abused her and ignored her for that to be the case. Yes we have left her to cry on occasion but only when we know she's really tired and us going in has always just worked her up more. She doesn't have attachment issues, she's a very bright, chatty girl. Sleep training isn't all about 'cry it out' and yes, babies waking IS normal, but my personal opinion is sleep deprivation isn't a rite of passage and no one should feel guilty for trying to get more sleep.
I fucking abhor the charlatans charging hundreds for a pdf though.
Just my two cents