Most are cheap with no parts availability or servicing dealers.
If you are real lucky, its a poor copy of some other brand. Again, with no parts or service available.
If they claim parts are available, then try ordering a carb kit, and a fuel pump kit, and see how long it takes to get them. That will tell you all you need to know.
Buy a Mercury - Yamaha - Evinrude - Suzuki - or - Tohatsu.
If you can't afford a new one, then go used.