Bangalore is full of garbage, filth and chaos, especially in and around old city centers like Koramangala, Indiranagar, Banashankari etc.
The better part is where there is more vegetation, and low population density. Commuting/traveling is a nightmare here.
So if you are new to the city, do not attempt to drive yourself. Instead, take auto, OLA, Uber, bus. Pollution and bad smell are some of the other things to consider. People are helpful, food places serving tasty foods(not necessarily healthy) are plenty. Overall, this city is nothing but hype.