Airport has plenty of tsa officers and the lines go by fairly quickly. I avoid Friday and Sunday travel because that's usually where the tourist rush comes by.
It wouldn't be Las Vegas without the slot machines in the middle with all the neon lights flashing around. Terminal one is mainly domestic with terminal three mainly being international. I really like how they have tons of direct flights to main Asian cities like seoul and tokyo.
Another plus is they have plenty of chairs to sit. Compared to la guardian which is common to see passengers sitting in the floor waiting for their flight...
Today I am traveling on southwest and they have easy check ins outside the gate and fast pass as well. However I traveled with my pet so I had to go to the full service but all the staff seem friendly!