I thought these were a little pricey for what they are, but I ended up buying two %26 placing on either side of the kitchen sink, because for some reason we had a gnat explosion this year %26 these helped knock that back. They are nice-looking wall units %26 I love that they also double as nightlights - the blue lights are bright enough to see your way around, but not too obnoxious. I don't like that the refill packs (sold separately) only include 6 refills - why not 10? Because we really went through them in the beginning when we were first fighting the gnats %26 they're also pricey %26 you have to wait for them to come in the mail. For all that price %26 trouble I think you should get more bang for your buck.