I don't know about you guys but I'm willing to give it a go!! I love my 480 & 360 Feser rads and the service I get from Martin is second to none!! He even called me to apologize for being late with my order and included about 75 Euros of Extra goodies to compensate for being late. I flushed and flushed my rad prior to use but the water was the same colour and quality as the first flush. Yes, they are expensive, but I took the plunge and they are quality products. Since I also use a bench table and have rads mounted on a home made stand out in the open I will buy one of these to try when they are released.