The last time I tried it the only thing it was missing was the thing that chrome does when you tap near several links and chrome determines that the click was somewhat ambiguous and offers you a zoomed up version in a pop-up box. Does it have that now?
The big problem for me on Android is that it doesn't yet support the native android zoom gesture - double tap, hold and swipe up or down.
Pinch zooming is for the birds compared to that, and Firefox still hasn't updated to fit in with the Android default gestures (Since JB or KitKat I think).