Worth the time and effort?

I have an 04 forester that I don’t plan on getting rid of any time soon. It’s only at 180k miles and I plan on driving her into the ground. Is the rust on the wheel well worth the repair if I plan on keeping it? I’ve seen a few write ups on here on how it could be done but unsure if others who’ve gone through it found it too much to bear, or worth it. Thanks in advance.