Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Great Game For HL Lovers and Newbies

Being a huge fan of the HL series from inception, I was more excited than Mick Jagger at a fashion show. Despite the monster install session (1 Hour) and Valve's Steam engine annoyances I got it all up and running and I quickly got thrown into the best 1st person shooter I have ever seen. Game play is intense, story line compelling, and the physics engine is a blast since you can pick up, throw, and shoot just about anything with real world like consequences. And the Gravity Gun. Come on! I wish I had one of those to use around the office.If you claim to be a gamer you will be a hack if this isn't in your pantheon of fine games. Word!