When we first launched we had a screen recording with a voice over.

Our problem with that is that, as a startup, our UI was changing every couple of months. The premise/goal doesn't change for the user... but we keep making it better. So that video got old too quick. And editing screen recordings every couple of months got tiring.

We are also looking to do some how-to videos with voice-bunny instead of our voices though. It ends up sounding much better.