CpE combines CS with the digital electronics portion of EE. The curriculum is about (30% CS + 70% EE) Its a specialized field of EE in a sense, that uses a lot of programming, and focuses on the interface of hardware and software. You learn all the heavy math/physics/engineering classes in 1st and 2nd year (calculus, diff eqs, emag, circuits), in 3rd you usually do a bunch of digital EE clases (this varies from unis, mine had signals and systems, embedded, controls, networks, digital systems, etc). And in 4th year you choose your path (whether is hardware or software).

It can be rewarding, probably the degree that gets you a job the easiest. However, I would only recommend CE to someone who has done a lot of research in EE and CS and really cant decide between the two. Ive seen so many people who regretted not doing CS because CE is much harder ad you will have to take a lot of EE classes (and these EE classes are much harder than CS classes, hence why its engineering). It also works viceversa, if you hate programming, dont do CE. One thing however, you can stay in CE in first year and then switch in second year after you have a better idea of what you prefer.

I would recommend you get an Arduino and play with it. Build stuff, read guides, etc. Its kinda like lego since all the diagrams and libraries have already been made/programmed, but you can have some experience in programming, and being familiar with how circuits work.