Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Feedback from using book in a course

This book is below my expectations as a good introductory book. It doesn't have enough examples, and the examples are too straightforward in some cases. Too much attention is sometimes paid to development of the proofs, which can be left out if this book is as the title suggests : "elementary", because it's more useful to show the reader how to solve the problems. In terms of the organisation of the book, it's a bit confusing (this is especially obvious if you compare this book with Farlow). I think an excellent book can be produced if this book is merged with Farlow and with plenty examples thrown in. i'm not sure how this book was selected as a required text for my math course in Boundary Value Problems because i'd hope that there are better books out there in this 21st century.