Phoenix Sky Harbor Airport is not as friendly as it says. Your typical unfriendly experience at Sky Harbor begins at check-in. The TSA machines block 3 exits which can be a safety hazard if there was a fire. The TSA agents are the meanest I have come across and I fly a lot. Sky Harbor Airport has very few eateries and restaurants compared to most airports and the selection is very unhealthy. The airport has been undergoing a constant phase of construction for at least 3 years with no end in sight. A sky train is supposed to connect the airport with city transit but it wont be ready until around 2020.