Product review (1 stars): Useless - find something else
Zero stars would be more appropriate.

I bought this with the hope that it would help with cleaning up the various stains that come with everyday living.  Not even close. First, the push-button to spray the cleaning solution is cheap and feels like it's going to break and it dispenses only a tiny amount of solution.  To cover a stain about 2 inches by 1 inch, you have to keep pressing the button. It took about 10 pushes to actually "cover" the stain. After waiting the required 2 minutes, you set the device to "scrub". The scrubber bristles are softer than my toothbrush and barely come in contact with the carpet, even when pushing down. The idea is that the scrubbing action will work the cleaning solution into the carpet and loosen up the dirt.  Then you switch to the "vacuum" setting, which is supposed to suck up the dirty cleaning solution. Another great idea with poor execution. After several minutes and lots of pressing the machine into the carpet, not a single water drop was removed. I double-checked the instructions to make sure I didn't miss anything - I didn't. I had followed them to the letter.

So, I tried again. I've tried this device on several different types of stains now and it hasn't done a darn thing.  New stains, old stains, simple spills, light dirt, pet stains, mystery stains, it doesn't matter, this thing is a piece of junk.