Are titan portable generators any good?

Not reading very good reviews on TITAN GENERATORS. There is an issue with their 240v breakers only tripping on one leg of the 240v. That's dangerous! I don't like that at all. I just talked to a man selling an 8000 w generator that he claims cost $2700.00 and ran it for 1 hour. Now he only wants $950.00. Sounds too good to be true, so I think I will pass on that one.