I have used Greyhound before back on the East Coast and I don't know why but the buses they use here in Arizona are pretty trashy and worn. The buses reek of urine from the bathroom, the plugs don't work, the chairs' felt are down to the bare threads, and the people who work there are the meanest people you will ever meet. Don't get me wrong, I got there on time and it was super cheap which are the most important factors.