Pros:

• When I wanted to download a couple of videos from my Facebook account, I had found this app and it is still there on my android
• I had to simply login to this app using my Facebook credentials since it takes us to the login page
• After that I have watched and downloaded so many videos from Facebook
• It really is one of the best app for downloading videos from Fb account

Cons:

• a couple of times, I tried to download the HD videos and it did not work