Question about working in an autism center or autism clinic

I am looking for a job and I was wondering if anyone could tell me about their experience working in a clinic that primarily serves kids with autism? Did you enjoy the day to day work? Is this the type of job someone could stay in for at least a few years? Were their a range of abilities from mild to severe, and did you work individually or have groups? I have worked with some kids with autism and I mostly found it really interesting and enjoyable but I’m not sure what it would be like to have a whole caseload.

This is a site for unpaid family carers.