Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent 1st edition, rip off in the 2nd

I was enchanted by the first edition and since have played Pirc regularly. Unfortunately, it is already outdated so I have jumped on 2nd revised and updated edition. Unfortunately, it is a complete disappointment, almost nothing new and even what's is new it merely says something like "there is a new move which changes the assessment of the position. You have to improve somewhere earlier". Rip Off. Black list Alburt :). Chernin was not involved in 2nd edition.