Ah we have two grad students in the lab from this program. Usually the interviews are pretty chill, and the current first year students's opinions about you matters a lot, so be nice They accept around 8 people per year, and it's rolling admission. They will send invite to the first 8 students, then if any declined, they will accept next in the waitlist. It's a close-knit program that they hangout with each other all the time and they seem pretty happy in general, so you are lucky!