Aw Congrats! I know that joy too! My little Mo was 3 when I got him and was like an old man. He would just stare and would not touch a toy. 3 years later, he is like a little puppy and plays all the time.
I posted pix a while ago from the time I got him until present day. Not only has his personality/playfulness changed but his physical appearance has too. I'm sure you probably have seen that in Jada as well. Love goes a long way!
Congrats and celebrate!
(I decided to post my pics again-first 3 are from when I first got him (he was rehomed)the last one is a current picture)