Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Brutal - if they gave zero stars this would be one

2 days after installation 4 buttons lie on the floor having been what can only be described as "shed" by the futon - maybe it will grow some new ones in the Spring.During installation the alan key provided lost it's grooves. The soldering on one of the under-hinges had come undone by the time it was delivered. Very disappointed.