[TheReveller]

Hard to say the exact %, but the web ide is more than capable for simple changes. If you're the kind of programmer that doesn't use auto complete or you don't need to do extensive refactoring that requires understanding the source, it's good for nearly everything.

It helps that there's a single source repo to work from, a remote filesystem for all source code whether working remotely or local that syncs immediately, and a single build system.

For me, I do all work from my laptop in the web IDE and save harder or larger things for when I'm at my desk. It's pretty great that I can start a change in one, then switch to the other seamlessly e.g. write the bulk in an IDE, then make changes in response to comments via the web IDE.