Definitely an "emerging suburb" - the police turned up the first night I arrived and questioned the neighbours. There's also plenty of people wandering around the neighbourhood and yelling into buildings after dark, and there's forever someone staring into the kitchen, so it's not for everyone. That said, the hosts were lovely and the location is perfect for transport to the BART (during the day), so all in all it was a great stay. Just know what you're getting into, keep your wits about you and you'll have a great stay!