Are these the same as the check in machines? My pet peeve used to be at TPA where 20+ machines stood waiting but only 4 were open at a time despite a long line and the clueless people thinking they had to wait to be called up. I once asked someone WN official, maybe here, about the staffing and they said a 15 minute wait in line to check in was not unreasonable. So maybe keep that in mind.