He also did some changes that required using Illustrator and that work, design-centric, was done very well. The part where we had issues was resizing completed books, aiming to publish with Amazon's extended distribution. Seems he did not know how to work with Master Pages and also had other issues related to maneuvering in InDesign.
Again, he is a very pleasant person, works quickly and gives feedback quickly. The only area where we had expectations that were not met had to do with InDesign mastery. He is a young guy and he can learn I am sure.