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

Great timesaver UNLESS you count the hours you spend detangling hair from the brushes and rollers! Don't buy this vacuum if you have a pet. It does not take the place of regular vacuums. You also have to be able to spend time following it and getting it unstuck. I LOVED this thing when I first bought it, which is probably where most of the good reviews come from. However, after a few months of having to regularly pull the thing open, clean the brushes, pull hair and dust from the roller and the various small parts, I am thoroughly frustrated. By regularly, I mean EVERY TIME I RUN THE THING! I've had to send for new brushes twice and the small pieces in the brush assembly break off.So...maybe in a few years they will have perfected the design. The concept is great! But folks, I'd wait for it to come out on video.