> I've implemented several medium-scale projects that I anticipate would have taken 1-2 weeks manually
A 1-week project is a medium-scale project?! That's tiny, dude. A medium project for me is like 3 months of 12h days.
Well a medium project for me takes 3 years, so obviously I am the best out of everyone /s
You are welcome to use whatever definition of "small/medium/large" you like. Like you, 1-2 weeks is also far from the largest project I've worked on. I don't think that's particularly relevant to the point of my post.
The point that I'm trying to emphasize is that I've had success with it on projects of some scale, where you are implementing (e.g.) multiple related PRs in different services. I'm not just using it on very tightly scoped tasks like "implement this function".