It’s easy to use and the water pressure is very powerful. There are 5 Spray nozzles to use in different circumstances(see the instructions). The pressure is enough to remove old algae in bricks ano concrete, as well as dirt on the ground.This is a nice little power washer that is fine for it's intended purpose; as a general household power washer. It's not as powerful as a Honda gas-powered power washer I've owned in the past, but it's certainly easier to set up, take down and especially maintain.I use this Homdox primarily to clean our rather large gas grill and to also clean our three cement patios. It's very easy to move around and, unless the spray trigger is depressed, the compressor doesn't run so it's silent. Even when spraying, it's not so noisy that you can't have a conversation with someone standing beside you.The assembly and use instructions are not well written, but not too hard to figure out. While some assembly is required, it didn't take me more than10-15 minutes to have it assembled and up and running. Once assembled, you can have it operational on any job in less than 60 seconds.Nice unit, glad I own it.This power washer is small compact and works greatDont expect to peel paint but for its size it works great.Great for smaller around the house kind of things, love hie easy it is to put away and get out. It's alot of fun to play with on a hot dayThis one is the best!! It's quiet, ergonomically correct, and the keys "push" down just right. I really am impressed with it. Another of my team members is looking for a new keyboard and I recommended this one. The angle is just perfect and I like the number pad on it as well. I've gone without a number pad for so long I forgot how nice it was to have. The mouse is great as well. I truly can't think of anything I would change on either one of these. It is a great product at a great priceCustomer service attitude is very good, buy is with the battery model, I think it is more convenient to change electricity pool, the seller has a gift oh.