Procuring clean water is one of the nicest things you can do for yourself. 

A good water filter will remove any bad tasting chemicals like chlorine and will also remove contaminants like Cysts, Lead, PCBs, MTBE, Mercury, Asbestos, Chloramine and VOCs from your water.  We bought a Multi-Pure water filter in 1995 and have used it ever since.  The fact that Multi-Pure is still in business and still provides filters for the purification units it sold over a decade ago speaks to the quality of their product and their commitment to their customers.  They have excellent helpful customer service people and have helped us find the right hookups for our countertop unit in several houses we’ve lived in which had nonstandard hardware on the kitchen sink.

These units aren’t cheap.  I believe we paid close to $300 for ours but if you look at the price of buying water at the store - the unit will pay for itself quickly and then start saving money over the cost of store-purchased water.  Of course it’s also much easier to have a unit on your sink then to tote water jugs to and from the store.