My Breezeway experiences (all three of them) have been great. first time was in ATL where they were up to zone 5 and we'd spent a little too long at dinner. It was TATL and nice to get settled in and pop the Ambien. I do only carry-on at the start of a vacation, so getting my luggage stowed quickly and easily feels good.
On the way home from CDG, I asked an AF GA about it and she just said "stand here." Took me next and we bypassed about a hundred people. They don't seem to know from zones over there, our connection was late and the line was huge.
Recently in ATL, connecting from SAN, I used it again. GA knew exactly what was going on and used the breezeway appropriately.
What's to complain about? Sometimes it works. But when it doesn't, it's just the same as it ever was.