The Craftsman 580.752550 High Pressure Washer is a good, solidly performing tool. It pressurizes and accelerates water to clean whatever you need clean. I've used it to wash my siding, second story windows, porch deck and railing, riding mower deck, garage floor and my car. The different nozzles allow for a higher level of utility. Need to spray soap on the siding to get it really clean? Bam! Throw on the soap nozzle. Afraid of hurting your car with water pressure that's too high? Wham! Use the gentle nozzle to get your baby clean. Got something disgusting stuck to your driveway? Pow! Use the high pressure nozzle and disintegrate whatever the heck that used to be. I did notice some problems. The nozzles are generally simple to interchange, but can get stuck, and you might need a pair of pliers to get them out. The machine is obviously noisy, so don't use it too early on a Saturday morning. Make sure you clear out the lines, too, to keep it in good working order.