Indeed, Skinny's transformation is pretty amazing. The kitty is practically unrecognizable, and he could definitely win any "before and after contest" he fancies to enter.
Skinny spends weekdays with Dr. Barton roaming around the clinic and weekends at home with his family. He's been with them for about two years and definitely seems to have made a ton of progress. Heal Veterinary Clinic calls Skinny the "resident phat cat," and he seems pretty happy with his position.