Instruct: Classify a given Amazon review as either positive or negative.
Query: An Excellent Quo Retrospective

This album is probably the best Quo collection currently available. Despite persistent rumours, Quo actually have more than 3 chords at their disposal! One listen to '4500 Times' should help convince any listener of that. There is a good selection of classic Quo material here, particularly from their days when they were as powerful a draw as Purple, Heep, Rory Gallagher, Nazareth, Alex Harvey, Family, Thin Lizzy, Budgie etc. This double disc set is great value for money - the tracks sound fresh and I defy anyone to sit and listen to this without tapping their toes or indulging in a spot of air guitar. Pure entertainment!