We had one and it did on decent job, but you had to pull around the hose and the power cord. So when you are not washing by a power outlet you have to get out the long extension cord.
I ended up buying a cheaper gas powered one to wash my quad, trailer, truck, and what ever else I needed to wash. I would recomend a gas powered one over the electric. To compare my cheap one to a good gas powered one, i would need to use a narrow tip (15 deg I think) compared to the wider (30 deg tip) to get the same results.