Generally, big Internal Gear Hub proponent here. That said, here's a 47 page, 696 entry thread titled 'Shimano Alfine 11 - Longer term reliability' from our friends at CTC:

https://forum.cyclinguk.org/viewtopic.php?f=5&t=64432

I'd specify the derailleur drivetrain, but that's just me. If you go for the Shimano Alfine 11, make sure it's the latest, improved SG7001-11 release (if Helix purchased the hubs some time back, they probably won't be).