I've been to cities where the light rail system was large and throughout the city. Phoenix is at the beginning of rail but has the potential to grow into a large system that may compete against other large metropolitan cities. The rail cars are clean, rail stops are pretty clean for a city and connects to several cities. I am not the fan of the advertising on the rail since you can hardly see out of the windows but I guess something has to pay for the system. I am excited about future expansions and beyond. Good system, great security staff, easy to navigate and clean.