It is undeniable that Apple Maps has improved and expanded its features to several new cities every week, but I have my doubts whether the pace is still too slow.

The latest additions were public transport data in Prague (Czech Republic), San Antonio and DallasFort Worth (Texas, United States), as well as real-time traffic information on the Greece.
As I said, almost every week there is an expansion like this happening. But if Apple wants to cover at least every capital city in the world well, it should be making expansions of the type to multiple cities weekly.
There is still (literally) a lot of ground to go
(via MacRumors: 1, 2, 3)