Comment by __float
My experience using Dagger (2) was so unpleasant that it really soured me on the possible uses of this feature.
I understand the benefits of dependency injection, but to be totally honest I'm more likely to take the Go-style approach of wiring it all up manually, even if it's a bit of extra boilerplate. The indirection and abstractions built up in DI frameworks is rarely worth it IMO.
Dagger is an absolutely pain in the ass. Its also damn good. Once you understand the archane syntax of their error messages its a lot easier (but still not easy) to use.
Harder than spring, but less magic than spring