There seems to be a link in the touris hotels with the local hookers. Walk into your room at night and you get a phone call asking, 'want sex girl?'. When you answer 'no' she hangs up an leaves you alone. Not really a problem, but possibly unsettling if not expected.
Also, prices charged are higher for foreigners, particularly westerners. This is standard and not avoidable for the hotel rooms. Just live with it.
Like all cities common sense is required but in places which maybe considered unsafe in parts its better to keep things hidden or left at your Hotel.