What did your users think of TestFlight?

Did you launch on TestFlight?

I'd love to get something in my users' hands ASAP, and that'll be faster if I use TestFlight. It also means I can push updates easier. But I worry about the extra barrier to entry, or people feeling uncomfortable installing TestFlight not knowing what it is.

My audience is skiers, who I'm assuming mostly don't already know about TestFlight.