From what I've looked into it, if you want a good industrial steamer for household/light duty vehicle, the VX5000 is a great investment ($750 IIRC), it puts out 60ish PSI and is solid. Otherwise, for the sub-$150 range most steamers that aren't just mop steamers are pretty good. Amazon has a few that have great customer rating feedback hovering around the $100 (+/- $20) range, just don't expect miracles. I just brought myself to the realization that a pressure washer is much cheaper and will see more use than a steamer. I do plan on getting the VX5000 or stronger eventually though, their usefulness around the house is amazing.