Product review (5 stars): Would buy over and over again.  Have done so, in fact!
Works great, lasts for about 6 months if you use about a gallon a day.  That works out to be $19 for 180 gallons (based on the price I paid) so 11 cents per gallon.  I'll take that over buying bottled water and wasting plastic!

Everytime I change the filter, it drips for about the first 12 uses, FYI.