This is the first comment in this thread that adequately captures how I feel. If I spend a weekend working on a project, there are two equal parts that make it worth my time: enjoying the process, and enjoying the final result.

It's inevitable (no matter how much you enjoy programming) that you will run into frustrating parts of working on code. If at the end of that process, you end up with a product that you know could have been better if LLMs were used, its a shitty feeling and makes it harder to power through the frustrating parts of the work.