I’m loving having IM open!
This morning I got to talk to Chris, a Koha developer. He gave me a link to a list of Koha libraries. The one thing to keep in mind is that this is just a list of the libraries that have told them they’re using Koha - there may be others out there (if you’re one of them make sure you get added to this list).
Another place to see what ILS people are using is lib-web-cats (if your library isn’t listed - it should be 
).
We are looking at moving to Koha as soon as time will permit. Unfortunately, our technology department built a new open source program for tracking student’s process called DART. I have to wait until that is up and going until they download and get KOHA to the point that I can jump in.