I wish he write more about his day-to-day experiences and less about the history of Tunisia. I find his analyses of countries politics and history to be shallow.
It's really hard to do that from three weeks of travel.
I like Matt's posts, but I always take them with a grain of salt. To really get an in-depth viewpoint you need to live somewhere for a year at least, and probably speak at least some of the local language. I've lived in a few countries over the years, and it's just such a different experience from just travelling for a few weeks.
It shows the limitations of what you can learn as a tourist. He would have to team up local residents more to go more in depth. The language barrier doesn't help either.
Still, it's good to know about what your first impressions might be like without actually going there.