Suds,
I have two pressure washers, one is a Craftsman Honda gas powered (3000psi at 2.7gpm) and the other is a Greenworks electric (1700 psi @ 1.4 gpm).
I previously had a gas powered PW purchased from the Borg, but it was hard to crank (no choke, no primer, no joy) and I had some mechanical issues with both the motor and washer, the Craftsman replaced it. Just something to bear in mind if you buy a gas powered unit, check and make sure it will crank easily.
The Craftsman Honda motor is way easier to start, and keep running, and no issues with it for over three years now. The only thing I would caution you about is the obvious gas related/periodical usage to keep it running and gas from going bad, and taking whatever precautions needed for storing. I use it for the bigger jobs needing higher pressure and rate. Best application is for cleaning pavement/cement with one of the surface washers (think lawn mower style washer) from Northern Tools.
The smaller electronic PW I got from Lowes. It is great for smaller jobs like cleaning our patio and house/patio siding and brick. I bought this one with the forethought my wife could use it very easily when she wants to do small cleaning jobs around our covered patio - plug it in, attach the water hose, and you are ready to go.
As someone above mentioned, and they all probably come with this feature, but make sure whatever you get has the built in option of applying/mixing cleaners as you go. I enjoy having the option to use either depending upon the job at hand.
Gary