Epic pretty much sums it up although there is of course much more to that. As far as training facilities go, this place has set the bar so high that I'd doubt that anyone short of Microsoft, Apple, etc. could compete. The buildings are named after constellations and each one is themed differently. I've explored almost all of them but know that there are tons of things that I've missed. Have you seen the treehouse (Endor)? Ha ha, how cool! Employees are very friendly (and used to random people roaming around) and apparently the dress code is so relaxed that I've heard people occasionaly wear their jammies.
The food is above average and there are plenty of morning breakfast options too. Across from all the classrooms are giant nooks stocked with lots of tea and coffee varietals. If you are ever here for training, eat lunch as fast as possible and just start at Andromeda and go forth! Also, it sounds silly, but check out the bathrooms as most are completely different. Amazing architecture and an art collection that rivals most art museums, this is a relative hidden treasure of the Midwest.
P.S. If you're wondering what the heck Epic is, start here: http://en.wikipedia.org/wiki/Epic_Systems But essentially it is electronic medical software.