Haflong is a hilly n beautifull place to visit. I am residing near to this place, just 4 hours distance( road) . transporation facility is good. if you want to go there, From guwahati u can book taxi. it will take near about 8 hours from guwahati. 3 years back roads were very bad.
Now NH construction was almost completed. smooth drive from guwahati. train facility is also there from guwahati .forest guest house as well as hotels are there to stay. when u reach there. you feel like anything. bring warm cloths. jatinga is there in haflong.
Worth visiting it. for safety purpose, it is suggested to start your journey from guwahati in the early morning hours. best visiting months in the winter seasons. Beautiful place, u will remember it for your lifetime.