Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Relaxing, fun and a good challenge :-D

Keli Roberts is one of the best instructors. She's brought us another great workout. It's kind of unique because of the foam roller. It massages almost all of your muscles (and some you didn't know you had) and it's very relaxing. As you get rid of your knots, you are also becoming a little more flexible as it's great for helping you to improve your range of motion. You can adjust the roller's position to get a deep tissue massage or gentle relaxation.In this you'll work your abs and total core and feel really good afterwards. It is about 30 minutes and so it's perfect for using at the end of a stressful day. I'm loving mine and it will make a great treat for yourself or a friend because almost everyone can do this routine.