Looks like I removed my comment by accident.
I tried it as well and I agree that GH Pilot generates a lot of code smell. I was getting a lot of weird code suggestions, even when cycling trhough alternatives which was even worse.
Currently github pilot looks like a tool with a lot of code snipets and most of them are not really good - aka bad/old practices like adding var instead of let or const, spliting code into too much variables etc...
There's no point for me to use it if I'll have to refactor every single snipet I get.
It also tried to offer me code I already have for certain services, which was super weird since I don't need 2 indentical service functions with different names.
For now I will turn it off as it's more of distraction than help. We'll see how it turns out in the near future.