Instruct: Classify a given Amazon customer review as either counterfactual or not counterfactual.
Query: Now, with all that being said, there is actually a draw back to this wonderful piece of equipment - the darn filter and canister....you have to empty it practically after every room (but is amazing to see all the stuff that came off of your carpet)...I have a carpet that sheds (like most new carpets do) so, I have to clean the filter and canister quite often.