Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Bad experience

The Instrument arrived on time for the Holidays. However, we could play it out till the new school year. The F Key does not play properly. I contacted the vendor (Austin Bazaar) and they said the 30 day warranty had passed so they would not address it. I contacted Amazon and they pretty were unhelpful in resolving the problem. The instrument has a basic defect and is at a music shop getting repaired. Basically Buyer Beware!!! Very poor customer service all the way around.