Yes, there is a bus service but it's still in its infancy with no proper shelters at the bus-stops and it's used mainly by laborers.
There is a metred taxi service that is very difficult to use because there aren't enough taxis, you can call ahead to book a taxi but that doesn't mean it'll show up on time. Then there are more expensive limo services which are also generally more dependable.
You must factor in that many of these taxis and limos have monthly contracts for the school run so it's difficult to find a taxi during rush hour. And with the Asian Games coming in 4 months God knows what transportation is going to be like.
Take the plunge, and the loan, and drive yourself.