it depends on yourself. If you have not any experience or knowledge about unix/C/C++ and want to be profound in it just by this class, it's no useful to you. But I think you should go to try one lesson( it's free) and then make your decision.
I have already taken one lesson of the first class and I am ging to take another one lesson of the second class, then maybe I will choose one.
谁知道BBT 电脑学院(Toronto)的Unix C++ with Project 和Unix C++大型（金融、通讯）项目班怎么样？