Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great strength dvd

This dvd is great for people who want a flexible and variable strength workout. There are four choices - upper body, lower body, abs, or total body. You select the level of difficulty, either 1 or 2, and then select the number of minutes - for upper body level one you can select 4, 8, 12, 16, 20 or 24 minutes. The number of minutes offered depends on the previous selections made. Each exercise is one minute, and the exercises change every time you do the dvd. You need weights for this dvd, preferably a lighter and a heavier set so you can switch when certain exercises are too hard or too easy. You may need a mat if you have a hard floor. Most of the exercises are straight forward and she demonstrates them before you begin. Minna is a good instructor, not too cheerful or obnoxious. I hate doing weights, but this dvd makes it less of a chore and so simple - how hard is it to do 4 minutes of upper body weights every other day?