NOTE: There is a 3,000psi version of this unit for more money you should consider if you are going to be pressure washing a large driveway/walkway. This 2100psi unit is perfect for hauling around, cleaning decks, small sidewalk areas, small driveways, cars.... and LIFTING and CARRYING if you need to up stairs, etc. You don't have to worry about accidentally "drilling a hole" in your deck with a 2100psi unit, or taking the paint off your car if you get too close. I have a gas powered high-end brand-name pressure washer. It's 70 pounds, and hauling it around is a chore, but I need it for my driveway, so I keep it in my garage. I bought this less-powerful unit because it so SO much easier to use than a gas machine! With a gas machine you have tremendous vibration (I mean TREMENDOUS) (I had one NAME BRAND machine that I bought that vibrated so much it loosened the bolts holding the engine to the unit and it flung the bolts around and the unit fell off!!!! ((Fortunately I was far away when it happened but it scared the %$@#! out of me. I filed a complaint with the consumer protection agency as I thought the design poor. The company said , "Outside the warranty period. TS..." I'd love to mention the brand but can't here.) Also those gas machines are very loud and noisy. And you need to have a supply of gas for big jobs, and oil. You have to pay attention to the oil amount because if it runs out and the machine is still going, it'll fry the engine. Those gas machines get very hot, too. The electric machines have NONE of those issues. So, looking for a machine that get's the job done, won't break your back moving it, won't drill a hole in your deck, and you can lift it up and put it in your trunk? This is it. It's pretty easy to assemble, too. It takes about 15 minutes. None of the major working parts need assembling, just the wheels and the handles and such. Further, I bought two units as my daughter liked hers so much I bought one for myself, too. However, I didn't use the one for myself for a long time, past the initial warranty period I'm almost sure. When I took it out of the box, it didn't work. OBF. After a bit of back and forth with the manufacturer to demonstrate it was an OBF and not user-error, they just said, "We're shipping you a new one asap." So, I am buying a third one now for my son's place. So, I think these guys stand by their stuff. One other quirk - not a bad quirk - but just to be aware. When you turn it on, it comes on briefly, then appears to shut off. It basically "idles" if you are not pulling the trigger to squirt water, so it sounds like it's off. When you pull the trigger, the motor kicks in and water flows instantly. That's another difference with the gas units - they rattle and belch continuously. My only recommendation is that they could put a light duty "lock on" button. You hand can get very tired after a while holding the trigger and dealing with the force of the water. (A twisty-tie works fine, but a push in- push out lock on would be much better. I'm ordering my third 2100psi unit. So, that's my recommendation.