How hard is it to use clippers?

I’m amazed at how expensive it is to cut hair. So, I want to do it myself. I have never used clippers before, though, and was wondering how difficult it was. I want to shave my head and my beard to ½ inch. I heard it wasn’t as difficult with a higher setting such as a half inch. Will it come out good and is it okay if I don’t want to buy the most expensive clippers? The whole point is for me to save money.