pannier story . . . .
box no 1 - lock flew out en-route. Replaced. Carry handle snapped whilst walking to the office (box empty at the time)
box no 2 - lock flew out en-route. Replaced. Box flew off in South London after hitting a big pot hole. Courier chased after me to tell me & I managed to find it - it had bounced onto the pavement. Box still intact (unlike my bags of Tesco shopping

. . . . .) but lock flew out. no surprise.
Closer examination shows that the "jesus bolt" (helicopter term for one-bolt-holds-it-all-together-or-you-die) holding it all together fastens onto a PLASTIC attachment - which snaps and then it's game over.
Vario-no-box system. Step away.......
Pretty poor really . . . . .
On the + side you can fit one instead of the back seat, which I like a lot, but you can't fit two one-behind the other.
My 1200 GS (12 months old, 8,500 miles) is currently getting the gearbox / ignition / speedo / gear indicator / electrics / electronics etc fixed. Again.
The loan bike (1200GS) has self-cancelling indicators. Quite amusing really.