[tancredi]

You can create anonymous teams, also the unhappy face would be only a preview, since you can segment individual user charts (Even anonymised) into 5 different data points and events that have been tracked and locate problems quite efficiently.

We use it in our small distributed team (Transparently) and it helps us figuring our when we have an issue worth discussing in depth.

You can anonymise it on larger teams and use it to figure out what actions may have made your team less happy, etc..