Cline has two modes (Plan and Act) which work pretty well but Roo Code has 5 modes by default. (Code, Ask, Architect, Orchestrator, Debug) and it's designed so that users can add custom modes. e.g. I added a Code (simple) mode with instructions about the scale/complexity of tasks it can handle or decide to pass it to Code for a better model. I also changed the Architect mode to evaluate whether to redirect the user to Code or Code (simple) after generating a plan.

Roo Code just has a lot more config exposed to the user which I really appreciate. When I was using Cline I would run into minor irritating quirks that I wished I can change but couldn't vs. Roo where the odds are pretty good there are some knobs you could turn to modify that part of your workflow.