Given that they know exactly who you are, I wouldn't get too personal with anything but it is amazing for many otherwise time-consuming problems like programming. It's also quite good at explaining concepts in math and physics and and is capable of reviewing and critiquing student solutions. The development of this tool is not miraculous or anything - it uses the same basic foundation that all machine learning does - but it's a defining moment in terms of expanding capabilities of computer systems for regular users.
But yeah, I wouldn't treat it like a personal therapist, only because it's not really designed for that, even though it can do a credible job of interacting. The original chat bot Eliza, simulated a "non directional" therapist and it was kind of amazing how people could be drawn into intimate conversations even though it was nothing like ChatGPT in terms of sophistication - it just parroted back what you asked it in a way that made it sound empathetic. https://en.wikipedia.org/wiki/ELIZA
better yet, why couldn't someone design a printer that can be 3D printed and use open source firmware?