Passed the Solution Architecture Associate exam today. I would have estimated I scored about 80% - was shocked when I got my actual score of 66%. But I'll take it! The practice exams were very helpful and with the discount they were very reasonably priced - I couldn't have passed without them. My main hurdle was a lack of hands-on experience.
Overall I do not want to be critical of the exams. The content is excellent and I saw many similar questions on the real exam. My only criticism is some of the questions are obviously authored by a non-native English speaker and grammar, punctuation, and spelling should be gone over by a native English speaker to clean them up.