
I am a bit biased as I worked at GitHub for 9 years. I have to say, though, GitHub is fabulous. I cannot even remember how I was working and collaborating on code before GitHub. If I had to pick on something I'd say there's still room for innovation. Especially around code reviews and discussing code.
It's very helpful to keep your codebase safe and easy to track revisions.
I've been using your service for almost 6 years, and I'd say this is best (and most popular of couse) option on it's field. Great to see also latest innovations like copilot and beta features.