The only negative review that I saw said that all the balls were chipped or nicked within the first week. I think the fault lies in their pockets and not their balls.
I do notice that the lifetime warranty only applies to home use, which is not unreasonable. I doubt that it covers nail heads in the pockets even on home tables.
I doubt that the style would fool anyone who was really familiar with Centennials, although I suppose in a store a salesman could say, "See, these are just like this $300 set but only cost $120."