My beef with Maps is the UI. It's so skittish and modal I'm constantly fighting with it.
If I position the viewport ans run a query, it unhelpfully searches a different area. If I tap on a pin it moves the viewport again. If I dismiss the pin info it moves yet again to an arbitrary position. Same for a while other bunch of interactions.
It feels like a UX that thinks it's clever but doesn't respect me as the user.