Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Satisfactory service.

The service is awesome.There is no exaggeration in the advertise,even the book feels quite better than what it mentions in the web.Thanks Amazon.It reaches just 1 day before my class,so a lot of help! Even the delivery comes before the actual estimated delivery date.Only thing is that there website is updating the order details a little later. :)