IMO, so cluttered and stuffed with... stuff ... that the useful functionality is buried under a baffling pile of UI elements and surprise actions.

It's a classic open source problem: pack in the functionality, but not be entirely sure how best to present it, so provide everything with lots and lots of switches for power users to toggle what they want.

Starting out with less stuff might help; starting out remembering to go to the map would, I suspect, be a great UX experience for a map app.

I think he means end-usability. Feature-wise and once you get used to it, it is VERY amazing :)