This was a replacement for a Brita  jug which I have had,  and used, 
continuously for many years.  This is much easier to handle than the earlier model and the lid is much better as it does not have to be removed to fill the jug.  My main disappointment is the length of time before the light sensor in the lid changes to orange and then red.  There are only two of us now and we only use the water for drinking cold, mixing the Bisto and in the bread maker and yet the sensor goes orange within two weeks and red by three weeks.  This implies that the filter should be changed.  I ignore it and use the filter for at least 6 weeks as I did with my old jug.  These new filters are extremely expensive and if changed when the sensor implies it should be I would be broke!