Experienced the new system this morning when trying to find out what gate number a flight was scheduled for.

The system was extremely hypersensitive to ambient noise, even in a fairly quiet environment (can't imagine that it will ever work well at that setting if you're calling from the airport) and kept saying "I didn't understand that" when I hadn't said anything.

When I finally got through the electronic gatekeeper, it put me on hold for 10 minutes and I gave up.

I have also experienced lately a longer time on hold, particularly in the mornings, on the Gold line.