Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Okay but could have been better!

As a huge "Friends" fan,I own both books and all possible memorabilia related to the show.I prefer the official guide rather than this unofficial guide because this book contains info that most "Friends" fans like myself already know.But this book should be of interest to those who do not know much about the show and those who have only begun liking the show.