Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Decent filter for the price
Review: I've owned this filter for about 2 years and have generally been quite pleased. It could be quieter, but hey, it's only a $50 filter. It does clean the air pretty well, judging by the filter. Some reviewers for Holmes products complain that they need to clean the unit. This unit stays very clean. Just a note however - when I purchased this two years ago, either my manual for the filter or the filter itself said to replace the filter every 3 months (I can't remember which). Since they were $60 each, I didn't do that and have replaced it about every 6 or 7 months. Well, I went to purchase a filter and they now say they last 1-3 YEARS with normal use. They have pre-filters that need to be changed every three months. This is a big money saver!
