My 22 mo.o son was diagnosed on the spectrum in May. He is very low on the spectrum (almost no verbal/communication skills, gross and fine motor no delay at all). My son has been enrolled in Birth To Three for the past 3 weeks. Just in the past three weeks (even missing some in-home sessions) he has improved SO much!! He has learned to sign "more" and "eat", has mastered the ring stacker,and almost the shape sorter.. all of which he had no clue how to do 3 weeks ago. He has also spit out a new word daily for the past week!!
They don't start off with work work work. A LOT of it is structured play and floor time. My son was approved for 15 hours a week (M-F 10-1). At least an hour of the session is outdoor play time, where they incorporate learning sign, and other communication skills while playing. To him, he doesn't know he's working! We do spend about 45 minutes broken up doing table time, but have also worked up from 10 minutes. Each task is broken up, and rewarded with snacks, special toys.. even just a tickle or a "YAY!!".
I highly suggest using the services. Yes, it is A LOT of hours on everyone. At first we were SO overwhelmed, feeling like we had no time to get anything done, trying to have everything clean before they come...so on. But it has become our new schedule and actually fits in quite well. My son is more structured, and is overall a happier toddler!
I live in CT, and went through Beacon Services. I know they are based out of MA though. They are really great! They care so much, and never treat you as just another client, or one more Autistic kid.
It's so hard hearing this diagnosis. I myself am still fresh with it, and am not quite sure it has hit my fully yet. ABA is probably the best thing you can do for your daughter. It won't hurt to try. Just give it a few weeks and I'm sure you'll see massive improvement. Send me a private message if you would like to talk more. I don't know anyone else with an Autistic child, it would be nice to have that support! Good luck!