How reliable are 3-4am Uber schedule pickups to BNE Aieport - Gold Coast

Hey guys, I got a business trip that departs at 6:15M. My preferred schedule time is 3:40am to arrive to the Airport their by 4:30am

I was looking at uber and I can schedule a pickup, but... how reliable is this? Has anyone scheduled uber pickups that early in the morning?

Can you guys share your experiences with uber schedule pickup?