I saw parts of the codebase while I was there. It definitely has dark corners. But given it's size and the complexity of the problems it's solving it's wasn't t

I saw parts of the codebase while I was there. It definitely has dark corners. But given it's size and the complexity of the problems it's solving it's wasn't that bad. Of course at any given time while I was there the team was running several different refactor/fix/delete/cleanup projects. It's a continuous and well funded effort.