Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Underground dated

I have been traveling to Kaua'i for 20 years and this is a great guide book if you went 10 years ago. I found the information on restaurants to be dated (They're not good forever - things change), the pictures old, and the information in general to need updating, badly. Try the Ultimate Kaua'i Guide for a more recent take.