"A study published in Harvard Business Review (see R. T. Rust, D. V.
Thompson and R. W. Hamilton, 'Defeating Feature Fatigue,' 1 February 2006)
discovered that, 'before use, capability mattered more to participants than
usability, but after use, usability drove satisfaction rates. As a result,
satisfaction was higher with the simpler version of the product, and in a
complete reversal from the earlier studies, the high-feature model was now
rejected by most participants.'".
- Gartner Report