A very neat, smart looking, box that is easy to use and seems to work really well. Filling the tank to the 5 ltr mark does make it quite difficult to handle, especially as one edge of the tank is lower, so I tend to fill to 4.5. We like the dial/button. An option of felt pads on the feet would be good (we have added some) as many people will tuck it away between fills and it's very grippy with a full tank. I've not had to swap filters yet, but it looks easy on youtube, and it'll be a while before I know if the filtration is stopping my coffee machine from scaling (the main reason i bought it) but the kettle-replacement ability is brilliant - much quieter and quicker than the kettle, and much cheaper than a Ziptap, Qooker or similar fancy hot tap.