A system and method for determining a frustration index for a software suite based upon the measurements of the software's performance. The frustration index communicates the overall state of a customer's performance-related user experience as defined by a set of testing criteria and specified testing scenarios. Actual test measurements of one or more pre-specified criteria in one or more pre-specified testing scenarios or operating environments are first received, calculated or otherwise determined. Priority weights are provided for each of the pre-specified criteria in each of the pre-specified testing scenarios. Actual test measurements are then compared to target quantities, to provide a delta percentage between the actual measurements and the target quantities. The frustration index (or indices) is calculated as the result of a ratio of the delta percentage between the actual and the target to the priority weight of the criterion.