What is OIS really like?

[cyclicrings]

Hi, I have just accepted a commission as a Nuclear Reactor Engineer as of yesterday, and I am shipping to OIS in October. I am wondering what it's really like? Is it really like fork and knife school? Any help or suggestions would be great. Also what do you take with you to OIS? Sorry for those that are older I think it was called ODS before? It's the "boot camp" the nuclear instructors and reactor engineers go to, along with the doctors, nurses ect...