I bought the Rotovac Sheardry earlier this year from Alltec and it is a great improvement on my old stainless steel upholstery tool.
It really does clean well, when pushing the hand tool forwards as well as backwards, as the maker claims.
There is also no over spray as the jet is fully enclosed in the head. The finger trigger is well designed and light to use, unlike the trigger on my old upholstery tool, which used to dig into my fingers after using only a short time.
Definitely a vast improvement on my practically antique upholstery tool. I'd highly recommend the Rotovac Sheardry.
Phil