I arrived a few days ago, with several international flights landing at the same time. The very tight space where they have the machines was jam-packed so people had to line up at the machines and those who finished couldn't get out. It was a mess. 75% of people (including me) couldn't get the fingerprints to read, but instead of sending us to the manual line, they said to follow the black line, which just put us at another automated reader but this time with little swinging doors that open to block you in (deceiving because you do the passport reader and facial recognition and think you're clear, but no, once inside you still have to put your hands on the stupid fingerprint reader!) I always have trouble with digital fingerprints when we renew our permesso di soggiorno for living here; one polizzotto said I'd be a good thief because I wouldn't leave legible prints! haha But for this system, it is a pain in the rear for the majority of people, and as it already reads your passport and your face, I don't see the purpose of also fingerprinting. I was made to spend an hour on this nonsense, because they wouldn't let me go to a manual line. Soooo...expect delays and frustration until they either work out the bugs or take out the fingerprint scanner.