Stability & "snapiness" wise it's not quite there yet.
1.1 improved things a lot, but there's still some way to go.
It's roughly where WP7.0 was before hitting 7.5.
Also much of the perceived snapiness in 7.5, can be put down to how the UI handles transitions.
It's just not used to the same effect in many places on Maemo 6x.