> So for me, I actually want what Google Maps gives me (or tries to give me).

One thing I find is that Google Maps really, really assumes that walking is very very bad and no-one wants to do it. So for instance, if I'm going to a particular place I will get a 39 bus and then walk 15 minutes. If I ask Google how to get there, I'll get a route with two transfers; if the stars align it'll take about as long as one-bus plus walk. So if I want Google to tell me when the 39 bus is coming, I'll have to lie about where I'm going.

(Also, at least where I am Google's realtime data is questionable, with the data from the operator and some other third parties being more reliable.)