I own 2 electric power washers. My oldest one is a Coleman which is over 30 myears old. It's been reliably but not very powerful. Very clumsey to assemble and use. I don't recall the PSI rating. I would not recommend .
My other electric power washer is a Green Works which I purchased from Lowes about 3-4 years ago. It is rated at 1800 PSI. Very easy to assembly and connect hoses , and move around your work areas. I have used it to clean my house siding (2100 SF home), gutters, Deck (800 sf), garage, driveway, and 2 sheds, 3 or 4 times. I have been extremely happy with it's performance and reliabilty (no problems). I have also lent it to one of my friends who has used it twice to clean his house siding. I not certain but I believe I paid approximately $140- $150. I have been very satisfied with the Green Work. I would recommend this unit
As Donald said in the previous comment. Buy it from the store and if not satified you can take it back.