I just finished "The Second-Worst Restaurant in France" and thoroughly enjoyed it. It is second in his Paul Stuart series, the first one being "My Italian Bulldozer" which I also enjoyed. Light amusing novels set in Italy and France....how could I not like them? And nice to read something set in a sunny clime when it's so dreary outside.
It's not great literature but when you want a light read McCall Smith does the trick. His output is amazing and apparently he writes at a rate of 1000 words an hour. Well, that might explain it!
He has also supported many good causes.
I really encourage you to take a look at the Wiki link....great reading!
https://en.wikipedia.org/wiki/Alexander_McCall_Smith