Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: An Astonishing Musical Achievment

Pink Floyd's "Dark Side of the Moon" is the only album that I own that gets more and more entertaining the more you listen to it. It's incredible how it works. The music is literally addicting. With its unique and soothing rythyms, this is by far the best album I own. The music is also relaxing. May I suggest that insomniacs try listening to this album from front to back before they go to sleep. It works. Anyway, BUY THIS ALBUM! It is worth your every penny.