Not especially. It's the model I use, but it doesn't suggest behavior much different from other models, like NancyLebovitz's, so the fact that it works for me doesn't say much about its accuracy. (I prefer it because it's relatively nonjudgmental and because it primes for 'people construct narratives which may or may not be related to reality', which is not a concept I find especially intuitive in practice.) It was more intended as an instrumentally-useful suggestion for people using models that do suggest that asking 'why' about peoples' emotional states is a good idea.