Report from UA 837 today. Unfortunately, we landed 3min late, but still made it in front of most arrivals from the US.

• 3:15 PM: - arrived at gate
• 3:25 PM: arrived at immigration queue
• 4:25 PM: cleared immigration (unfortunately, half of the booths were closed. When I thought, I was almost there, there was a hidden queue behind a glass wall. So it took way longer than I expected)
• 4:30 PM: cleared customs, no queue

I had a connection NRT-ITM at 5:30 PM and arrived at the ANA check-in 1h before departure. I was really stressed, but made it with 30min to spare.

Firefox didn't display the blue visitjapanweb Code, insisting that I don't have Internet connection. Worked in chrome, after wasting 5 minutes for it.