I don't have an interview gouge that up to date, but I assume it's the same it's always been. If you know your FOI and can apply that to scenario-based questions, you'll be fine on the phone interview with (probably still) Mary Keller. Very, very FOI-conscious instruction is required for this type of work. Not all instructors can work at IASCO. Many have been terminated and many leave on their own.

This is a place that you can go and fly a lot right now, but things change. Some instructors have averaged 20 hours a month for a year in previous years with IASCO. The outlook is generally favorable for a lot of flying this year.

This company is not known for being instructor friendly, just keep that in mind. Take it with a grain of salt though, because most CFIs complain about every flight school. Results vary widely here. Be professional and keep your head down and in your work, get what you need and move on if you choose to work here.