As a heavy Claude code user that's not really a selling point for me
Ultimately quality wins out with LLMs. Having switched a lot between openai, google and Claude, I feel there's essentially 0 switching cost and you very quickly get to feel which is the best. So until Claude has a solid competitor I'll use it, open source or not
Even if you don't care about open source, you should care about all the obfuscation happening in the prompts/models being used by Cursor/Claude Code/etc. With everything hidden, you could be paying 200/mo and get served Haiku instead of Sonnet/Opus. Or you could be getting 1k tokens of your code inserted as context instead of 100k to save on inference costs.