My wife and I finally ordered our replacement filters (4 months late) and when I installed them I was surprised by just how dirty the old ones had become. The new filters sped up the water and got rid of the beeping noise. Next time we'll replace them at 6 months.
The system is light and the filters are easy and quick to install. They are also long lasting. I like that the system beeps to let you know you need to change filters. The automatic shipping is great.
Filters are very easy to install and come with a battery so that the unit can alert you when you are ready for a replacement. Faucet looks great and water tastes great. We haven't done any quality tests on the water but I assume the quality is as advertised. Only little surprise for us was how much pressure was built up when we first turned on the water with the new filters - might want to turn water back on slowly!