Instruct: Classify a given review as either positive or negative.
Query: Cheap product, no longevity.

I have gone through 3 Pur water filters over the past two years. I will not buy their products any longer. All their faucet filters seem to be prone to leaks within a few months of usage. This product in particular is coated with a chrome colored film that chips away and looks bad, even if the seals were to hold out for more than a few months. If these filters had any longevity they would be great, they are good while they last. But they don't last long enough to be worth the money. I'm going to research the market and make a purchase based upon the units longevity, even if the filters aren't available locally it will be worth it to get them on line rather than replacing the hole filtration unit every 4 to 8 months.