To me it really depends on how I'm using it. Sometimes it makes me feel smart, I'm solving problems I wouldn't have been able to solve before, and I'm learning a lot. And sometimes it feels like I've outsourced my thinking and I can just feel myself getting dumber and losing control over the project.

I think it's vital that you keep strict control, and really try to understand what the AI is doing. And especially when you're doing something really complex, even Claude Opus can get lost or lose track of the context, and you need to be paying attention when that happens.