DS3 (aged 6) loves it, although it's more the social side that he likes! He really, really misses school at the moment- his friends, his teachers, the activities, the routine, everything.
DS2 (aged 11) really loves school, he's academically a high achiever and has genuinely always enjoyed that side of it, and he really thrives in a school environment. He really likes the "these are the expectations, these are the boundaries" environment of school and has no difficulty in following rules, seeing the difference between class time and play time, etc.
DS1 (14) really hates school. All school. He has ADHD, query Conduct Disorder, GAD and various behavioural issues. He was let down by primary school who took an "oh he's not the worst he doesn't need formal help" approach until towards the end of year 5 when with adolescence approaching his issues magnified and went into overdrive and then they took a "exclude him from the classroom and continue to lie about acting on getting proper help" approach, which was delightful and really made everyone's lives better. Then he was further screwed up by the secondary school he transitioned to, who also failed to secure any support and to ignore my repeated requests to get some before things escalated as they always to, treated me as a ridiculous, ill informed, over anxious twat of a mother until he had melt down and then took a punitive approach which made things steadily worse. And now he is on his fourth attempt at alternative education and unlikely to sustain that placement either, because it's rather too fucking late by now. I did give that school another chance- I sent ds2 there for year 7 and even he, who has as I said above always loved and thrived in school utterly hated it, so just after the first half term he transferred to one which seems actually to be run for the students and not the SLT's ego.
TLDR: two like it, one doesn't, experiences with schools have been mixed but I am now very sure the schools that let ds1 down did so because of something wrong them them and not him