Pros
The coworkers are fun people and sometimes it's rewarding teaching kids about something you enjoy. If you like being with kids you can see them 10+ hours/day or 24/7 if you're an overnight instructor
Cons
As a commuting instructor I was working 10+ hours in a day, and that's only the hours I was onsite. I was also expected to prepare lessons and write "diplomas"-personalized cards praising each student on their individual accomplishments and positive personality traits- on my own time. If you're an overnight instructor you have to spend the full day from 7 to 11 with the kids. While that was going on you would need to always have a positive face in front of the kids. It feels exploitative. In addition, the material we were expected to present was way too advanced for the age group they were giving it to. Scratch was for 7-9 year olds. At 7-9, most of the kids didn't understand the idea of a mouse with a right and left click button. Stuff that severely limited their ability to learn scratch.