Instruct: Classify a given review into positive or negative sentiment.
Query: It is not what it seems

Apparently, Amazon is selling a Kindle version of Penguin edition. Nevertheless, it is a sloppy edition by digireads, without introduction, index or explanatory notes. Since this is a work in the public domain, that can be found for free in respectable internet sites that offer classics in Kindle format, it is not acceptable to charge any money for it, unless it comes with some additional value. For less than what it is asked for this, you can get, also from Amazon, the complete Stevenson's works in a neat edition, perfectly formatted and with good indexes (Delphi Classics).