Lightweight Angular tooltip component
It just looks really good.

I think it stayed this long unanswered because there's not much feedback to give.

I reviewed and liked


The commenting
The naming
The sizes of your functions
Reading flow


I am not convinced that choosing a random int actually helps the load balancing much, but don't have a better alternative. I would also probably put the random number generator in a helper class, it does not really belong in a tooltip component.