We used this method with our son starting at 6 months old and it made meals really easy and wonderful for our family! We started introducing purees at 5-1/2 months, and after seeing our son not enjoy the experience, we thought we would just let him experiment with whatever we happened to be eating. I feel that aside from helping him enjoy the actual experience of eating, it also helped develop his fine motor skills and hand/eye coordination--to the point where he had the pincer grasp (with thumb and index finger) perfected well before we'd expected him to.
This is an easy to read book and a wonderful resource for parents wishing to try something other than the traditional purees. No more boiling, straining, or mushing!! Hooray!