It is the best explorer for me too. It blends into the rest of the vim so much so that you don't feel the difference between manipulating text and files.
I've been using vim/neovim for decades, and "so that you don't feel the difference between manipulating text and files" made no sense.
Then I watched a video from the README (https://github.com/stevearc/oil.nvim) and yup, that looks amazing and makes so much sense. Thanks GP for mentioning it!