Ingress and it's barrier to entry
Google has an excellent reputation for server uptime and reliability. They pride themselves on making processes so efficient that hundredths of seconds after a request is sent the answer. As a result of their very high work ethic and desire to excel logic would indicate that Niantic labs would follow the same work ethic and strive for the same quality of service. Over the last few months of game play I have found they resemble an early twitter.