I'm a AWS Certified Solutions Architect now

I recently took the certification exam for SAAC03 and got certified. Difficulty wise it was medium.

The one resource that really helped me was the dump from the examtopics.com website. The questions that were asked in the actual exam were very similar to the ones on that aforementioned website.

I would say, if you are interested in any aws exams, i will suggest you to start with this and skip the foundational level exam. As most of things are covered here.

In summary, i would say this gave me some confidence with deisigning solutions using aws services. Keeping it efficient and affordable the end clients.