I bought it a couple ago, it was last one on the shelf and was half price. I really love the lovht system that lets you when to change you  artridge. It seems to need changing less often than one I had a few years ago. So it seems to take into account amount of water filtered aswell as time.
It's a good size for me living on my own and it can either sit happily in the fridge or on my work top. I don't use mine in the fridge because i use for the kettle and food cooking.
My kettle is limscale free which is quite an achievement in London.
One thing I woukd say, it is expensive at fulk price and I woukd not have bought it at full price and you need to keep an eye open for offers on carteidges.