What are your thoughts on Shark HW units?

So I’m in the market for a new HW machine. After browsing through pwstore I see that shark is priced very well, maybe they’re on sale. Anyways, does anyone have any experience with these machines? I do mostly residential but plan to start pushing commercial after I get hot water. Im thinking around 3000 psi at 5 ish gpm. I know more gpm would be ideal but the pressure washing side of my business is small (although steadily increasing) so I’m kind of price conscious. I plan to mount to a trailer along with my roof cleaning system.