[masraum]

Nice!

We've had several of the super cheap models over the years. We've also rented carpet cleaners from the grocery store and HW stores. It never seemed to make too much difference in the results to me other than the super cheap models being slower to get the job done. I suspect the much better model like you got to be as good or better than the rental model.

One thing that I've heard (don't know if it was mentioned previously) is that using soaps or detergents leave a residue that will attract/trap new dirt. I don't know if it's true or not. We've just used plain hot water and ended up with dirty water without using soap.

I suspect results have a lot to do with the nature of the rug/carpet/padding, etc...