Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: A good experience

Personally, for me, I already had a pretty good programming background in other languages such as PHP, so this book was a lot easier for me.But even though it made things easier for me, it was still a very simple, easy to learn book. This Demysitified series is a pretty good and new series to me, and so far it's been a good experience with it.I hope to read more Demystified books later on!