Never used one but it looks like a better design to the one i have ( the sandia design sold by alltec . cleansmart ,ashbys and more ) which in basic form has a weak vac 4" bypass , wheras yours looks like a two stage 5.7 , and there is room to stick in a three stage id say .
Also yours looks more stable standing , mine falls on its side if you pull the hose or bump into it ...then trips switches till it drys , its too tippy , like that cub spotter they sell on cleantalk , did i read a happy dog walking past wagging his tail knocked that over .