Hoover Tumble Dryer Hoses and Hoover Spin Dryer Hoses

Purchased this for a family friend that had their tumble dryer located in their detached garage, no longer as able as they were and difficulty with mobility going to and from the garage we brought the tumble dryer into the kitchen, connected up this little item topped up with very cold water and it works a treat. I haven't witnessed it working but I am told that there is now steam in the kitchen at all. The trick is to use very cold water or even small freezer blocks to condense the steam. It was very simple to connect up with all the parts you need to do this. Would recommend this to anyone thinking of trying one. Though there seem to be some negative reviews which may have put me off but I'm unsure as to why they had problems. Maybe not using cold enough water?