There is alot to consider and for you to learn about generators. Is the
unit regulated voltage or will it swing 30v, possibly ruining things
with computer chips. Type and quality of motor and noise level are
important. For the price Generac EXL models at HD are good but noisy.
They have pressure oiled motors with oil filter and go 2-3000 hrs,
electric start and regulated power. But it depends on what you need to
power. for lights and no TV or computer anything works. For sensitive
electronics you need regulated power. Check out Generac and Honda
online, Honda are 4x the cost but some can last 10000hrs vs a 500$ unit
that will likely last only 250-350 hrs. Many cheap units have crappy
lawnmower engines and are not made for extensive run time