Yes, as an intro to the base method its a winner. The exact steps, temperatures, and times take a lot of the guesswork out. I experiment with a lot of recipes, and oftentimes you just have to guess on the method, what's in the spice mix, etc. Trying this one gave me a real baseline I could compare the results of others.
I could imagine having someone new to curry cooking pick out a base, make this Madras up, and be amazed with the outcome.
As for the recipe itself, I think the lemon juice is a must. I also wonder about the 10 minute simmer at the end, and if its necessary. While I didn't add any water or base, it was starting to get into Bhuna territory in terms of dryness.
--- Josh