Max
You know the answer to this one really...you're just fooling about
A TM4 is the best bit of kit around.
It is much better than a rotary for domestics as it it much lighter and more maneuverable in smaller spaces and there is little chance of it colliding with furniture and doing damage
It lifts the pile better than a rotary as the contra rotating brushes pull the pile instead of swirling the carpet pile around
It pushes the pre-spray into the back of the carpet better than a rotary in my humble opinion
It can do stairs at a pinch where a full blown rotary cannot
It can handle dry carpet cleaning
It can handle different types of carpet from domestics to commercial
No offence meant to others but the oreck is a poor man's tool against a TM4..........the price reflects it. Stick a wanted advert in the for sale section and see what comes out of there......if not bring the brushes you have to the TACCA day and I will buy them!!