The best way to tell what direction you were facing when you came above ground from being on the subway was to look at the direction of traffic aligning with the arrows on Google Maps... but they decided that was no longer an important map feature and got rid of it.

I would frequently be zoomed into a specific location, and relatively soon after need to switch contexts on the OS (to check an email, answer a text message, etc.). When I returned to the app it used to be that it would retain the zoom level, but after updates it seems that Google thinks it's useful/funny/cute to zoom back out to the full zoom of the overall trip. For the life of me, I can't imagine a context in which this is useful.

They've got a monopoly on mapping data, and insist on taking a great app and making it worse. I can't understand why.