For my first son Caspar, we used the BLW approach. I do believe that each child is different and previously I wasn't even aware of the Montessori approach.
With Otis we intend on using a combination of both. Montessori commencing at five to six months with lots of finger/family foods incorporated. There are so many things that I love about the Montessori approach - the ritual, cultivating indepedence and control over the environment.
The above table contains my collected thoughts on the two approaches, it also helps to explain a little about them. Click on it to enlarge.
As pictured below I am starting to gather our materials - placements, napkins, small glass and bowl. The fabric isn't like my usual choice but I wanted something sweet and special for Otis. You might think it's a little crazy giving a six month old child a glass or bowl but stay with me. I'll let you know (and show you) how we go.