Formal Diagnosis or Not?

Hi this is my first post here as I was recommended to contact the NAS by my CPN. Was just wondering if there was any benefit really for me to get an formal diagnosis for autism.

I was asssessed as having aspergers syndrome by my local mental health team who later talked to and confirmed with my GP that it was the correct diagnosis.  I actually spoke to a consultant psych today regarding another matter and I also asked about the autism diagnosis and he said that based on the information that he had that he would agree with that diagnosis.  I am thankfully getting help from my local mental health team including a visiting occupational therapist so my question is that is it worth it for me to go to the hassle of getting a formal diagnosis?