Limited content, language issues
Limited content coverage, language issues, incomplete explanations while mostly factually correct. Covers a limited subset of actual exam topics only. None of the recent ML services (SageMaker, Rekognition, Textract, etc) are covered nor is Glue, Cognito and more. Author obviously non-native English speaker. App texts are riddled with language and spelling issues: Incomplete sentences, missing verbs, etc. On the content side, explanations are sometimes simply repetitions of the solution - not providing information or knowledge. Navigation: clicking next when at end of a question takes you to the end of the next rather than beginning :(
