BE CAREFUL. I strongly advice NOT TO BUY Peak Water Filter. They have nice website but very poor filter performance. After one day of use it turned my water into bad aroma and bad taste. I reported the problem to the company and they replied after a long delay with the following: "We have had customers report a chemical like aroma before. It is caused by the interaction of the resins extracting minerals from the water, and these aromas then get captured in the top chamber. We recommend simply opening the lid up for 10 minutes and this dissipates. Typically, that doesn't then transfer to the filtered water." I followed their advice but of course it didn't helped at all. I'm in process of asking for a refund. But heard from other clients attempts to contact the company with no response.

The filter that it came with leaks lots of resin beads. It seems like the company has put lots of thought into the design, but if the execution is poor then it's all for naught. I also worry somewhat about the polymer beads introducing more microplastics into the water.

Exactly as advertised: excellent water filter for coffee. Makes a noticeable difference to water taste and hardness.

As others mentioned, the jug itself is pretty low quality. Would expect better material and tolerances, but not a priority.

I’ve had this water filter jug for a couple of months and now and so far, I have nothing bad to say about it. It looks and feels a bit flimsy and doesn’t easily fit in the fridge but it does job. As for the coffee taste, I did not feel that there was a noticeable difference between Peak and my old Brita but it did slightly taste better and hopefully, I won’t need to descale my espresso machine.

I bought this the same time I bought my Breville Dual Boiler. As others have noted, the fit and finish is along the lines of a pre-Cold War Russian manufactured plastic pail. Okay, not that bad, but the clunkiness of the refill lid is nothing short of confounding. I am afraid I am going to snap it every time I open it. Whatever. If it saves my Breville Dual Boiler from scaling death, I shall worship this product for time immemorial, warts and all.