I've found it useful for doing simple things in parallel. For instance, I'm working on a large typescript project and one file doesn't have types yet. So I tell the AI to add typing to it with a description while I go work on other things. I check back in 5-10 mins later and either commit the changes or correct it.

Or if I'm working on a full stack feature, and I need some boilerplate to process a new endpoint or new resource type on the frontend, I have the AI build the api call that's similar to the other calls and process the data while I work on business logic in the backend. Then when I'm done, the frontend API call is mostly set up already

I found this works rather well, because it's a list of things in my head that are "todo, in progress" but parallelizable so I can easily verify what its doing