Product review (5 stars): Thought I was taking a risk.
Took a risk considering all the 1 star reviews due to soapy taste. I tried a little taste of the water right after I installed the filter so I could see what these guys were talking about. It was there a soapy taste. I ran it for about a gallon and a half just to be safe. It took a long time but the water tasted fine.  I didn't notice any difference in the operation after I installed it. Same flow speed etc. So I guess it works as advertised.