Instruct: Classify a given review into positive or negative sentiment.
Query: Not built for a big room!

This vac will not do a large room before the filter clogs and the thermal overload kicks it off. It is worthless for a gift shop daily cleaning. Also the first time trying to take the filter out was a pain as the book is wrong, saying to turn the top of the dirt holder. It pops up. I would not buy one again and am looking for a bagged model.