Mjay, I've read the article you mean and I was not impressed by it, the so called coffee-expert in the article was quite low on his standards and said thing like "too fine grind means too much coffee pouring through" which is false and "leave the settings of the grinder over to the supplier" which shows most of us here know more about coffee and grinders than he does.
The best cappa in the hague I drank at the Zwarte Ruiter, although the milk was a bit too milky in stead of (micro)foamy. The cafe in front of the Zwarte Ruiter makes a decent cappa too, so I've heard.