The process was long. Started with a 1-on-1 interview by a recruiter. Was then offered an interview in NYC a few weeks later. This interview was pretty long. It involved another 1-on-1, followed by a lesson plan/teach back session, and then an email writing simulation/preference sheet completion. If you have had experience interviewing, you'll find it to be pretty standard except the group portion. If you've never interviewed, I think you're more at an advantage since you can come in with an open mind. I found it to be easy personally but others in my group were very stressed/frustrated with the interview.
My tips: know the facts and ins/outs of SA. They ask you a lot about why you want to teach there, and because they are constantly under the microscope, they want people who align with their missions in challenging the traditional model of education. Also, don't get stressed out when they give you feedback during the group presentation - this is on purpose as this is part of what happens in their schools daily (you receive feedback on the spot and they want to see how you deal with it).
Also, if anyone from SA recruitment/hiring is reading this, please note I was very displeased with the disorganization internally. As someone who traveled a great deal for this interview, I felt my interview experience was not what it was described to be because there was some internal error on your end and my part of the interview had to be cut short.
Hopefully this doesn't happen to anyone else. I got the offer in the end and accepted, but I could tell that something was happening in their office that day and that chaos/mishap in scheduling rooms caused a lot of problems for my group and I that may have contributed to others stress. Not a good interview environment. If your candidates are hard at work preparing, the least you can do is give them the interview environment you promised.