I still own and use the very first David Clark H10-30 I bought in 1982. I now have four other DC headsets. I have a DC ANC headset, and I do not recommend this product. If you must spend the extra for ANC, go the rest of the way and buy Bose. But, Bose is not money well spent for a student. do the four or five hours of flying of equal value instead!
I agree that there are other good brands on the market, which DC mastered first, but you'll probably find that DC product support and parts (should you ever need them) is the best one can find.