Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This vacuum cleaner is the BEST!!!!

This vacuum cleaner is wonderful! It REALLY sucks (in a good way)~! It is heavy, so I get a workout at the same time, but it works very well and is the best vaccum cleaner I have ever had! You have to buy the bags for it (as opposed the bagless), but it is sooo much cleaner and less dusty that way!