Not CS degree, but EE, and totally worth the effort. Not only that without degree, I wouldn't get jobs in many companies, but I actually learnt a lot. Laplace and Fourier will be as valid in a 100 years as they were 200 years ago.

Yeah, it was fucking hard. Math was rather OK, only 50% of the students failed the first exam. EE was harder, 90% failed at the first try. That wasn't regarded as problem - on the contrary, the exams were designed to weed out. After two semesters, we already had 50% student loss.

I remember what the EE prof told us in the first semester: we would learn a lot of things, but most importantly, to think like an engineer. Didn't make sense right away, but 5 years later, I knew what he had been talking about.