I've had the itools station for a few yrs now and still going strong. Expensive but a god send when you have 120m2 to do early morning. There's a few manufacturers doing them now
I think the mixing stations are expensive for what they are. When you think about it, its just a 2 wheeled trolley that allows you to tilt a bucket When I tell people how much mine cost me they cant beleive it.
I've got 2 itools stations and it was the cost that put me off aswell but they certainly pay for themselves and the bucket defo takes a bashing when it comes to cleaning.