Yes I have one.
I have found it very suitable for domestic work. The u-bend nozzle that comes with it is a bit wide for most guuters. I believe the fittings from Polarvak fit well onto the end making it fit into most gutters.
I personally bought a modular hose attachment, I believe Ominpole sell them, I bought mine direct from
http://www.modularhose.net . A little expensive but worth the investment.
The Vac is very powerful with 3 motors.
Overall IMO good value for money. I also use the vac for sucking up water/gunge after pressure washing.
Steve G