I considered buying it, but I went with a shurflo after all, you can't order spares for the wcw one, and you can for the shurflo. I think £94 for something that doesn't last as long as a shurflo (let's face it, things need to be replaced) is a bit dear. I've got my shurflo from eBay USA, which was £125 or something, only a bit more, but the peace of mind that you change out the pump.
Also different flow settings is what I wanted, which you can do of course with a tap valve, but I don't like that.