If your philosophy about schools and their role in educating your children is positive, and you have observed your children to be happy then I think that is fine.
Others believe that education is a broad term that isn't so easily definable and encompasses many things and many different approaches and strategies. People have and are entitled to have different opinions about what outcomes would determine a 'good' education.
I find education fascinating, and of course there exist many different 'models' of it the world over in different countries and among different cultures. I do not believe it is something that can be so easily pigeon holed.
My motivation for withdrawing my children from their school - which certainly had some excellent teachers - was based on many things, some to do with what I observed of my ds's experience of it. But hugely, I withdrew my children from school because I wanted them to have more freedom to choose what their education should look like if that makes any sense.
I do think, - and this is not an attempt to undermine the valid right of those parents on here to send their children to school if they wish - that the formal schooling model with the current NC can be slightly 'rigid' and 'boxy' and increases unnecessary pressure on children to pass tests simply to achieve grades that are then used by gov/schools as some kind of barometer of institutional success/party politics, instead of how happy, confident, SWITCHED ON and EXCITED about learning kids are.
This for ME is what I wanted for MY children. I observed that my ds's were losing their in born love for learning. Whilst I know that schools have the ability to inspire children, (of course they do) I believe that HE allows for more flexibility in terms of tailoring the educational provision to your childs particular interests and especially learning styles.
I've had this discussion with many teachers including a head teacher and several university lecturers, and many agree with me that there seems to be less focus on catering for the individuality of children within the system. This is not the fault of teachers. I am all for teachers to have less restrictions placed on them in terms of what to teach, how to teach and when to teach certain subjects within schools.
Actually many of the so called experts currently making policies for teacher's and schools and thus influencing our young have no more teaching experience or qualifications within the field than an average parent. Some less actually. Yet they are determining policy for education for every child in mainstream school.