We did Wrap Around here several times for Dylan and difficult child 2 (they had seperate TSS's and Mobile therapists, shared the same BSE).
Our first encounter wasn't good, but that was because the TSS's didn't want to work. They wanted to babysit. Our last enounter was the best, as the TSS we had was superb!
The thing about Wrap Around is it is a form of behavior modification. Our TSS came in the home, observed me, observed the family, and made recommendations on changes to help us all. Not only did he notice things Dylan needed to change, but my parenting skills as well, and taught me (slowly) how to change the skills to more productive ones.
We had our last TSS about a year. I can't say good enough about him. It changed our lives.
The thing with this is, you either get good people or lazy ones. We have had TSS's that text message boyfriends on their cell phones while they're here and are supposed to be working. Just keep your eyes open and make sure they're doing what they are supposed to be.