I had a partner assigned to me a couple of times during my initial G2 course years ago since I was there by myself. He was called in when there was no other paid employee available.
All I know is the young man that was assigned to me seemed to have been around for a while. He knew the airplane pretty well and had seen just about everything the instructors threw at me. The one thing I noticed is he did NO instructing but was VERY helpful when I had one of those "now what" moments. Which was usually every day.
It should be a great experience and will look great on your resume.