Well, the upload usually works pretty good, no major delays. After Upload Completed it takes anything between 5 and 15min(!) until the file appears in the factory/online monitor. That's way too long.
Additionally it shows multiple copies of the uploaded file, which is quite confusing?
@SandervG yes, I usually also prefer the USB stick, it always worked flawlessly with the UM2+ (in form of a SD card) the last 7 ys. But what is the point of buying a connected S5, when neither the filament sensor (the first feature we had to switch off immediately) nor the online/remote functions work?