I expected it to be much easier when I started, but that means once you have the certificate, you really had to put a lot of time and effort into it to get it. By doing all the units with tons of information, you have the feeling, you know it all, but the real learning starts with the assignments when you have to use what you learned before and I really learned so much by completing those. Altogether it is all a really good concept which I would recommend any time.