My BIL did the surf lessons at TL a couple of times. He's a surfer and said it was lots of fun. He and the kids didn't need instruction, they were just happy to have waves.
Our family enjoyed the surf lessons at TL just last week and it was wonderful! I would also second the thought on the waves are 'better' at TL. Also, the staff is Wonderful. Bring someone to take pictures and hang ten Disney style!
TL sounds like the place for surf lessons. I was wondering about the waves at Vero Beach. We are used to big waves as we go to the Jersey shore and Ocean City MD. When we were at Co-Co beach last summer the waves were very mild. Though it was very beautiful.