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.

This book is a collection of two books, so you basically get the first half for free and have to buy the second one because they are not in order. This makes me quite angry. It should be stated immediately that this isn't just an inconvenience. For example, if I want to know some information about how to implement data encryption with Mailvelope, I'll look it up online using [...] first, then try again by finding the URL with mailvelope.com/learn? And that's it.
Bad review

Great series. Really enjoyed it.
Good Review

This could have been an excellent book but it was not very well written. The information is good, however the writing style left a lot to be desired. I would try another volume in the near future if there are more available at this reasonable price.

Good Review