My child is zoned for Stone Mill, but we chose a small private instead. It's a good school by most measures, but it wasn't the environment I wanted for my son. Lots and lots of work sheets from kindergarten on up. Lots of busy homework in the early years that doesn't seem relevant. And of course teaching to the test, which you'll find in every MoCo school.
It has a highly competitive, high achieving culture. It's definitely not overcrowded.
If I were the student, I would have been fine there. I learn well in almost any setting. I didn't like it for my active, hands-on son.