I would not be without one. I use it for many other things so it's run pretty consistently welding or plasma cutting.
It was -20 (Yes 20 Below 0) this morning the pipes would freeze in a few hours if we lost power. It runs 80% of the house including the well. When the power goes friends and neighbors show up. It was a buy of opportunity that was one of the smartest things I have ever done. We use it 1-2 time a year in emergencies.
Generator loads build up pretty quick, get one that's up to the job.
Make a list of priority circuits to make sure it will handle the load. Add them up and add 15% Motors have a high initial load.
My Priority circuits are
1.Furnace fan
2.Fridge
3.Well Pump
4.Septic Pump
5.Kitchen entire
6.Bed room lights
7.Bath lights
8.Garage lights
9.Outside lights
10.TV Just one
11.Computer
10K Trailblazer Gen/ Welder
I put a switch box in to make it easy and safe. Backfeeding can kill line workers.
It's more than most people need. Quite satisfying to fire it up on a sub zero night when there is a storm and the surrounding landscape is black. Worth every penny.