Metolius FS Mini Carabiner: Size Matters

Does size matter? This question, historically the domain of trashy women's magazines, is now relevant to the ever-evolving climbing gear industry—in particular, rapidly shrinking carabiners. The Metolius FS Mini wiregate now stands as the smallest full-strength carabiner on the market. It looks and feels like the imitation 'biners my non-climber friends use as key chains, but with a strength rating of 22 kN.
Pros: small size saves room in pack; lightweight (but not the lightest).
Cons: limited gate opening doesn't work for cloves hitches, wide runners, or desperate clips.