posted about 2 months ago
Sandrett, you state that you like the project you are currently working on.
It looks like you are only interested in this other PI because you think it will look good on your CV.
Personally, I think this is a really bad thing to base a decision on.
You have literally no idea whether working with this PI will open doors for you or not. It will depend on how your PhD goes. If your base assumption that your CV will look better is false then you have a potentially disastrous situation on your hands and you simply cannot be certain you are right at this stage.
Unless you can convince yourself that you are doing the PhD because you love the project I would stay with what you've got.
The world is littered with utterly miserable people who chased CV enhancing stuff over their love of the work. Do you want to risk being one of them?