I've found that in Melbourne that while Apples maps have a lot of data, its all very very stale. I live I'm the Eastern suburbs, a lot of the places of interest are very old. Shops that haven't been there for years are listed, and large points like Universities are completely absent. It makes finding a particular shop or business near impossible.

The road data is good buy very old. Roads that are listed have has buildings on them for years, dead ends aren't, just general mapping issues there. For some reason they've listed half the tram stops as train stations too, which doesn't really help.

I want to love them. The vector map tiles are silky smooth an very easy to navigate. The app is well thought out and easy to use. I just wish they'd used better sources for their data.