In 1990, if you had told then 18-year-old Billie Joe Armstrong of Rodeo, CA that his band Green Day would go on to become one of the biggest and most influential bands of the '90s, he would probably have smiled, patted you on your head, and sent you on your way. But you would've been right. (Obviously.)
Well, this is their first album. This is Green Day's roots, and it makes for a less polished, and more raw record. However, it also contains Green Day's signature catchy hooks and lyrics about teenage life in general (but not in the annoying, trite way that most punk-pop bands write them!). This becomes quite evident when "At The Library" starts. Short, sweet, and about falling in love with a stranger, this is a good example of not only what the rest of the album has to offer, but the direction that Billie Joe and company would go on to take on the way to multi-platinum success. After all, what else would you expect from Green Day?
All in all, like I said, this album is not quite as "produced" as their major-label albums, but it's just as good (if not better), and if you have come to fall in love with Green Day's three-chord, simple, catchy, fun alternative/punk/pop sound, then I definitely recommend buying this and "Kerplunk!".
I also hear they're re-releasing this album remastered with a new song, if you're interested.