Those loos which have a little handbasin built into the top of the cistern - do they work? My plumber is suggesting suggesting one for when we replace our broken loo, as we don't have a washbasin in there, and I am interested for their water-saving properties, but I am sceptical. Does it get tiresome reaching over the loo to wash your hands? Do you always drip water over the loo seat lid from your clean hands? Do they break a lot?