I am curiouse, how complex was the app? I use cursor too and am very satisfied with it. It seem that is very good at code that must have been written so many times before (think react components, node.js REST api endpoints etc.) but it starts to fall of when moving into specific domains.

And for me that is the best case scenario, it takes away the part we have to code / solve already solved problems again and again so we can focus more on the other parts of software engineering beyond writing code.