Detailed Instructions: Given an English language product review, determine if it is a Good Review or a Bad Review. A good review is one where the product's review has positive tone and Bad review is one where the tone of product's review is negative.
Q: The book provides very few concrete examples from his practice. He offers anecdotes about experiences but not enough details in relation to those anecdotes, which made reading him somewhat frustrating at times.
A:
Bad review