Until recently, I didn’t waste time with two different apps for Facebook communications. The official app works just fine for checking in, reading your timeline, and chatting with others. The only reason I ended up downloading Facebook’s Messenger app was to have faster, less distracted communication with my band mates who use it exclusively to communicate.
However, I still enjoy having the chat feature inside the Facebook app. When I’m browsing my friends’ status updates, I can easily talk with buddies who just want to say “hi.”