...is out on Amazon Prime now. I watched the first episode during my commute.
It's really well done, with some great contributions and insights from the players and (to a lesser extent) the coaches. Ep 1 is pretty much a warm up for the rest of the series, I suspect, as it deals a lot with the end of last season, what that means for the players for this season, and introducing some of the key characters. Danny, Marcus, Louis, Steph and Baby Chis are prominent, as is Lennox Anyanwu. Very little from Marler yet, but I can't imagine them doing a doco without having a contribution from him.