I spent two years helping out in my daughters class and would not have seriously considered HE if I hadn't had this experience.
My daughter was way ahead of her peers academically and was getting bored, frustrated and ignored! She started to lose confidence in herself.
The teachers didn't seem to enjoy their jobs, some seemed to actively dislike children!
I knew I could do a better job myself.
The actual 'learning' time was only a couple of hours a day, once you take out playtime, lining up, assembly, more lining up, waiting for teacher to tell half the class to be quiet and listen, stop fiddling etc., lunch time......
The kids would just start to get on with their work after sitting on the carpet 20 mins and having it explained (half of then still didn't understand what they were suposed to do) then it was playtime again!
2 hours a day one to one is more than enough for us to do work at home and then the rest can be music, art, dance the park, socialising, puzzles. Doing whatever they want, at their pace.
I also love being with my girls.