Very good gun. Just look on the net for reviews on the SX3. The waterfowl guys seem to love them and that speaks volumes for an auto.
The only con I've found is that they will get alittle sluggish when alot of dust/debris gets in the action, but that applies to all autos. We hunt TX every year and sand blows into a gun every day. I've seen it stop autos. The SX3 made it for 3 days this year, but she was moving slow by the third day.