Going for a conference and only for two days.
They're a bit tense and unpredictable, so keep an eye on media and always check with locals about the safety of where and when you intend to go out.
There are some very strict warnings - i.e. don't go there - for the southern suburbs of Beirut (including Dahiyeh) because of the possibility of rocket attacks and car bombs:
The southern suburbs are the area south of the Camille Chamoun Sports Stadium to the airport and east of the main airport road including the suburbs of Chiyah, Ghobeire, Haret Hreik, Bir el Abed, Borj el Barajne, Mraije, Roueiss, Lailake, Hay el Sellom and Tahouitit el Ghadir; also west of the airport road, defined as the area west of the airport highway to the coast, south from Adnon El Hakim Road to Abbas El Mousawi Road. about 4 years ago