Yes, i have and still use chatgpt. I use it to test and satisfied mu curiosity. The results of my testing, chatgpt's answers are quite varied:
1) to some questions that don't seem to be in its database, the answer is about "i don't know" or "don't have any information about this".
2) for some questions that are general in nature, or few in its database, and the keywords have many meanings, the answers are not accurate.
3) the results of the summary and analysis of the meaning of several paragraphs (sentences) by chatgpt are quite good.
4) lines of code (in python) chatgpt results, some still need to be edited, some of the same variable names are writen differently (index added).
5) chatgpt's answers are good enough as a first input and consideration before anything proves to be even better.