Wayne's Review of Katies Bingo
OK, first of all, there is no Katie.
'Katie Cooper' is an alias of the original owner of this site, who I happen to know in real life. She sold the site in 2020 and is no longer working in online bingo, but the Katies Bingo brand lives on under new owners.
The design of the site and the Katie character is all designed to make you feel like this is a site built by a real bingo player, but really it's just clever marketing. They've done the same thing with their other site, Zoes Bingo, which if you look closely are pretty much identical in how they position a female character as the owner, with a cartoony avatar and gmail address.
However, if you look past all of that what you've got is a standard Dragonfish bingo site that is just as good as any other.