Here is a take. FB seems to be doing pretty well:

a. Both DAU and MAU continue to grow. FB now has 2.7B MAU and 1.8B DAU. Combining across all their products (WhatsApp, Insta..) the DAP is 2.54B

b. Ads is the source of income and FB makes $39.6 per user in the US&CA and $7.89 avg. world wide

c. Operating expenses are kind of stabilizing which is a good thing for FB.

The presentation is a good easy read. I like how FB define the metrics like DAP etc.