The Sun Joe SPX3000 Electric power washer is easy to assemble; easy to use; very well and cleverly made; very effective. As long as there's water and an electric power source, you're in business. I do recommend buying the extra 25 ft high pressure hose to minimize having to stop to move it if you're washing a large area.
I found the psi adequate for cleaning our deck and log siding on our home when using a non-toxic cleaning product. I do not like the water hose connection at the bottom of the front panel. The unit comes with a short connector prohibiting hand/finger tightening. The connector leaks as a result. And my last comment is that the pressure hose is very stiff and won't wind up to store on the unit. I don't think there was much user friendly testing.
My 1996 gas powered washer failed to start and it was 2,000 PSI and 2 GPM and this washer is 2,030 PSI and 1.76 GPM and worked great, no pore gas powered washer for me ! I have recommended same to many of my friends.
After looking at reviews of many pressure washers this one seemed to be the best and I am very pleased. A little assembly not difficult and more powerful than expected.