For me personally since I didn't throw this out there when I asked the question, I'm a VIM person, and I hate that every time I have to review code, look up cod

For me personally since I didn't throw this out there when I asked the question, I'm a VIM person, and I hate that every time I have to review code, look up code, leave a comment on code. I have to leave my editor. Most collaboration happens outside of my editor and it interrupts my flow a lot. I want to be able to deal asynchronously without it interrupting me while writing code with most of my development process from a single place.