Kobylak is an ok teacher. You will learn a lot and AP Chem is fun but he will test you all of the time. Also Capa is not fun. If you have him for AP Chem make him take your class on the boat trip. That is the best lab.
I had trouble in chemistry, but I probably would have had a worse time if I wasn't being taught by Mr. Kobylak - heh. Class was fun as well.
Pretty nice teacher and class...wish i was smart enough for AP Chem.