It was rarely more beneficial than it was a nuisance. It’s known that the 670G can give you a nice flat line over night, but it is achieved by suspending and reducing insulin for significant periods of time. You pay for it in the morning when you get up and bolus for a breakfast— and then hit 300. So people’s solution is to trick their pumps into giving them extra insulin, but I’m not sure how trickery is safer when it comes to insulin delivering devices.
Personally, I don’t think these “smart” pumps are safer. Not yet. Hopefully making use of a better performing CGM will have a big impact on these pumps’ capabilities, but the 670G isn’t using a strong CGM, so we don’t know yet where the problem lies.