Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not rigorous enough for higher level students and too concise for first time learners

Simply terrible.Lowlights:1. Important theorems left as problems for students.2. Presentation of the material forces students to flip back and forth between chapters nearly every lesson.3. Lessons themselves are unclear. Subspaces are nowhere defined and examples using them are given before spaces. There is no consistency in the book. He sometimes gives a geometric presentation, and other times prefers to stick with an algebraic one, obviously both would be helpful...but often times he picks the more unhelpful one.4. Answers to odd problems are often nowhere to be found. Answers to even problems can't even be found in the answer manual.5. Some of the problems are structured st they are incomprehensible...i.e. the treatment of inverses6. Strang and Poole offer a far better treatment of the topic.7. But this appears to be the dominant textbook in the Ivy League...