Personally, I made a few new friends, connected with some high school colleagues and met a long term girlfriend.
I miss its simplicity. The lack of a news feed was a feature, not a bug.
Perhaps Orkut was more predictable in what you got to see, but fb does need to have an algo to show the feed since you can't sift through all of it..
I am mildly surprised that Google wasted money on it for 10 years. However Google's lack of focus in it's pre-Pichai years was notorious, and undoubtedly explains this.