Product review (1 stars): so I cannot advise like many other users who complain that they are drinking ...
These filters have changed. Organize the reviews under "most recent" and they're all one star!!
I ordered the triple pack.
I measured the water flow on the filter that had been installed for 12 months and got 0.5 gallon in 55 seconds.
I figure over a year the filter gets full/blocked and slows down the rate of flow. Previously when I have installed a new filter the flow rate is noticeably faster.
Not with this one! I installed this new filter, which had different labeling from the previous one, even though I re-ordered  from the link of my previous order. The flow rate on this new filter is 66 seconds per 0.5 gallon, even after I ran two gallon through it first.
I live in an area where the drinking water has no taste, so I cannot advise like many other users who complain that they are drinking tap water from this filter, with horrible taste.
However, the substandard flow rate, and the number of recent negative one star reviews is reason enough for me to return my order, as I no longer have confidence in this filter.