I did this last year. It was difficult, but I learned a ton.
They used discord (which wasn't my favorite), but everyone was really friendly and the curriculum was great. There were a lot of talented people in the cohort and many of the strongest went out of their way to be helpful, including a bunch of names on the list who got funded.
I was sort of expecting someone to pop out and ask for something from me by the end but that never happened. I wonder if I should apply again to see if they changed things from last year.