What's the best about it, it's open source, costs nothing, and is much more flexible than any other tools. You can use any model you want, either combine different models from different vendors for different tasks.

Currently, I use it with deepseek-r1-0528 for /architect and deepseek-v3-0325 for /code mode. It's better than Claude Code, and costs only a fragment of it.

Once something, like in this case AI, becomes a commodity, open source beats every competition.