I'm over a year post-op, and the only area that's a problem is right below the lower lip. All the problems went away everywhere else after like 3 months. It's very slightly tingly, but mostly feels slightly stiff, I think because of the way the gums were stitched together. As long as I don't try to move my lower lip a lot I don't even notice it.
Kinda makes sense as there was more work done down there I guess.