Instruct: Classify Amazon reviews into positive or negative sentiment
Query: 5 Stars for casual fans, 4 for diehards

For the casual fan, this CD is quintessential U2. It has all the songs a casual fan could want (except for those songs after 1990--with the exception of 1998's awesome single "Sweetest Thing"--thrown in as a bonus). It also has a hidden track "October" to make up 15 solid tracks that are worth every penny. The sound quality is great; and for diehards, the Limited Edition CD is a better investment because it features a CD of hard-to-find B-Sides for only a few dollars more. Either one is a sound investment.