Although it doesn't have as much pressure as higher-end, more expensive units, this pressure washer does the job without being tied down with an electric cord or a wheeled gas engine.
I use the supplied light-weight hose when I need hot water; just boil water or run hot water into a large bucket, attach the suck end of the hose to the supplied filter, and enjoy warm water washing.
Or get an adapter, attach it to your garden hose, and get unlimited water.
I haven't used the soap dispenser yet, but it'll come in handy for pre-soaking bugs on a windshield.
I haven't used up the battery yet, so I can probably use it a few times before re-charging.
Great unit.