The service now operates 24 hours a day at the airport (but not on shabbat). I booked an appt at last minute for 11pm last night and appointments were wide open. And when we got there we were the only ones testing at that time.

Also, arriving passengers now use testing stations if they want to inside the arrivals area before they exit from customs. So the check2fly testing area is now exclusively for departing passengers.

Results were a bit slower this time - the so-called 14 hour option took 23 hours to get results.

They don't actually ask to see your flight details for your test, so if you need a 24-hr corona testing center at a reasonable price, you can use this.