IMS foundation interview

i am a fan of Montessori and would like to enrol my son to IZmS. Lucky enough that we received an observation interview and have done it this week. However, I wonder if any parents here to share info like how competitive to get a spot in foundation grade Do they offer accept, waiting, and reject letter as interview result? What type of kids they are looking for? Any if you also went there for observation recently?
Thanks!