This has been a very interesting thread.
I have read it all, but over a few days, as time has permitted, so apologies if I repeat anything.
we looked at a LOT of schools for dd1, and a lot of different types of school. given that we have moved house 3 times during her (so far short) school life, and have minutely examnined the schools in each area each time, it really does add up. we have seen schools that were not the right set-up, but had the right attitude, schools that had the right set up but the wrong attitude, you name it.
dd1 has attended: private nursery attached ot a private school; ms pre-school; specialist pre-school; now she is at an ABA school (and she is only 6!)
what we have found out along the way is: ther eis no one place that is perfect. even where she is now, which is absolutely ace, and she is leaping ahead, has it's drawbacks.
we looked at a ms school where the head was absolutely fab. dd1 would have fitted in well, and head was happy to have ABA in the classroom. but at the time, dd1 was scared of children. there was no way that school woudl work for her (it also had mixed years, so at just 4 dd1 would have been mixing with children ranging up to 7.) it would have terrified her, leading to her shutting herself off, and all the ABA woudl have been able to do would have been to reach ehr - no energy left for learning.
the ASD special school was similarly awful for her. no consideration of what dd1's actual needs were - everything was geared towrds getting her to not be disruptive ina ms classroom, and not really that bothered by whether she was actually learning or not.
I have found that a lot of the time, the reason given for no learnign outcomes being achieved is "well, it is vey hard ot tell what each child can achieve, they are all so different" subtext: your child clearly has great learning difficulites, it isn't anything we are doing wrong. the expectations are not there. not in the same way they will be for dd2.
we looked at lots of ABA schools - probably half a dozen or so. none of them were perfect either. one clearly had the worng peer group for dd1. one had no peer group for her (she was 4 at tthe time, their next youngest pupil was 10), and htis bohtered them (didn't actually bother me, but hey, it's their choice).
one seemed ot ahve it all - well established, a good peer group, years of teaching experience (educationally, not ABA-wise). but it felt just like all those ms schools we had seen - not much interest in dd1 as a person.
where dd1 is now, is not perfect either. it is great, and they do their best. it is tiny (3 pupils!) and no peer group for dd1 (dd1 is 6, next pupil is 9, and other one is 15; she is the only girl) but i really don't think this is the end of the world for dd1. she needed somewhere that was going to give her space, and space is what she has.
at times I have wondered whether we have been very pfb about our pursuit for a school for dd1.
but then, she is my pfb. and I haven't had the chance ot relax that pfb-ness that most parents get, becasue I have had to continue to fully protect her in so many ways.
maybe what we did was ot chase the best education possible for dd1, rather than a "suitable" one, but then we were able to do this, because the so-called "suitable" ones weren't suitable for dd1, iyswim? the only time we made a choice that could be considered precious, and in pursuit of gold-standard (for dd1) was right at the end, when we were choosing between ABA schools. the rest was a no-brainer, for us and her.
the more space we have given dd1, by taking her out of the real world (to an extent - of course her school make sure she is taking part in real life, as do we!), the more she has expanded to fill the space we have given her. if we had left her in a ms school to meet challenges, and learn to face the world, she woudl have withdrawn more and more, and ended up more autistic than when she started.
so, ABA works for dd1. and ABA school works ofr dd1 for now. she has done brilliantly there, so much so that it seems she may be outgrowing it slightly. but that is because it is a new school, with little experience of the teaching side, not because she is ready to go into ms. and what we have ended up with is a school which is happy to grow with us - we are all learning together. sometimes we think the academic side is not highlighted enough, and so we have had am eeting with the school, and they are now re-focussing and have re-drawn the timetable to adjust to this.