My impression is the opposite - Google Maps' data is so much better that it hardly matters, but this app seriously lacks polish. For instance, it's laggy - iOS 6 Maps doesn't always make 60fps, which is a shame, but this app doesn't even try. Simply panning around (on my 4S) is enough to produce serious stuttering; even the simple transition to the side menu is not smooth. Or consider Street View, which is missing the signature transition as you "move" from one place to another.
edit: Opening the side menu, for its matter, visually seems to depend on hitting a tiny tap target; there is hidden space to the left of the target but not above it, which is the natural place I tried tapping. The menu itself is weirdly designed (giant spacing) and prone to accidental dismissal by someone trying to scroll it.
edit: Opening the side menu, for its matter, visually seems to depend on hitting a tiny tap target; there is hidden space to the left of the target but not above it, which is the natural place I tried tapping. The menu itself is weirdly designed (giant spacing) and prone to accidental dismissal by someone trying to scroll it.
No bookmarks either.