* high variance in teacher quality (we had such a bad French teacher that after 9 years of lessons, I knew less than those who had 4 years at a public school)
* long hours
* since the school didn't believe in failing students, everybody was kept in class, and the teachers had to do lots of repetitions to accommodate unmotivated students who remembered nothing from the past two years of classes. Very boring and demotivating for others.
* a bowl made out of copper, with a fitting lid
* a three-legged stool
* a very fine pair of salad servers, plus a wooden letter opener
* my own apron (sewn on a mechanical sewing machine)
* a bowl made out of cherry tree
If you count perishable items, probably my semolina soufflee :-)