i'm two weeks in to Auto Mode and i think i can begin to make some observations.
pros:
not adjusting basal rates since they are automatically calculated!
keeping blood sugar relatively steady while fasting
predictive low suspend (basal rates cut off when blood sugar starts dropping)
cons:
can only correct to 150 while in AutoMode, although my target blood sugar is 130 and the standard range is 90-140
no manual boluses to correct blood sugar; must use the bolus wizard and enter high blood sugar or carbs to get insulin
can not override suggested bolus amount: it's all or nothing
although the targeted blood sugar is 120, i'm finding that the pump is keeping me closer to 150 fasting
the pump is having trouble in the mornings, and my blood sugar is shooting up to 230 even though i'm fasting
the automatically calculated maximum basal rate does not help with underestimated carb counts, or high fat meals
no extended, dual, or square wave bolus features are available in Auto Mode
basal rates suspend after a meal bolus but before eating, although bolusing 15-30 minutes before eating is suggested