University of Illinois Urbana-Champaign is participating in the TIER Campus Success Program.
Follow their blogs here. As of Feb. 2018 they are off to a great start in sharing their Grouper journey:
Getting Over the Hump with Grouper
https://spaces.at.internet2.edu/x/IoBQBw
In addition, University of Illinois Urbana-Champaign presented on their Grouper deployment at the IAM Online webinar on Feb. 14, 2018.
See the slides here https://www.incommon.org/docs/iamonline/20180214_IAMOnline.pdf