Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great for intermediate level!

After two years of consistently working out, I was starting to get bored with my usual handful of pilates and yoga DVDs. I received "Maintenance Pilates for Weight Loss" this past Christmas, and look out! This is a pretty tough 30 minute routine. Ana is great at cue-ing, but does move quickly (so beware!). Even though I like to consider myself pretty fit, my muscles were shaking during some of the moves so I knew I was really working. It's tough, but I'm looking forward to working at it until I can look as smooth and fluid as Ana does when she performs the exercises.As a side note, my mom (who has never done pilates before) tried doing this DVD with me and it was way too advanced for her. I loaned her my beginner DVDs to work with until she tries this one again.