You can find walkable, safe neighborhoods all across the city, so it will likely come down to the location of your work, and the type of lifestyle you prefer (laid back, in the scene, family life, etc.). I live on the west side myself, so I'll speak to this area.
What is a Concave Wheel? Concave Technology takes the center of the wheel and dips inwards to give it that bowl effect. Rather than exaggerating a bigger lip for the back wheel, and a smaller lip for the front. Concave wheels emphasize the concavity of the rear wheel to differentiate from the front wheel.
What are the Wheel Bearings all about? Wheel bearings enable wheels on a car to spin freely and stay secured to the car. Cars have four wheel bearings, one located at each wheel. If the wheel bearings wear out, you will feel the wheels and steering wheel shake. Do not drive the car in this condition and have it checked out as soon as possible by a professional mechanic.