There are a lot of no-name Chinese generator makers. They tend to work OK... until you need parts for them, and then you are then SOL since models and parts change so often.
As an alternative, Champion isn't that much more, and even though the generators come from the same Chinese factory, Champion is superb at having parts and service for what they sell. New carb? They can get it for you.
If having to go inexpensive, the open-framed Champion 3500-4000 is loud, but will produce decent power. CPE also has a 3000 watt inverter for a couple C-notes more which is a lot quieter.