Abstract: Techniques and systems for providing user sentiment metrics are described that can help assess user sentiment with experiences by creating user sentiment metrics that combine telemetry data with user research data in a manner that takes a memory aspect into consideration. A user sentiment metric service can manage a user history data resource. The user history data resource can include user history information associated with a user having a user identifier. The user history information can include a plurality of events, each event having an event identifier and a timestamp. The user sentiment metric service can generate, for a unit of time, a user sentiment metric for a user using events occurring prior to and during the unit of time. The events can include events obtained from the user history information. The user sentiment metric can apply the user sentiment metric to an application.