> I'm working on a paid mobile app

This doesn't say much. Plenty mobile apps, even paid ones, are of shovelware quality. And even if that's not the case, it's typically something very self-contained and of relatively low complexity.

On my personal projects I also seldom need to review code very thoroughly. But it's also not super complex stuff.

At my workplace things are not like that. It's a very complex system on a highly regulated environment. Opus 5.5 constantly get things wrong in ways that are simply not acceptable.

And I am not even an AI naysayer. I accept it as another development tool.