so far in my experience it's a bit meh on both fronts. modules got rid of GOPATH, which is kind of nice. i personally never cared much about the whole SAT vs ...whatever algorithm rsc implemented (I forget the details at this point, which may be an indicator of how important it is the the user base...or I'm just ignorant of the benefit's I'm getting/missing)

having it be incorporated into the project is ultimately the real win, because it gives a target to consolidate round.