I had Smart (?) Meters installed in November 2018 and I saw them as being useful for feeding back accurate information to trigger possible power reduction and cost savings.
So far I fail to see any benefit for myself.
The usage and costs shown on a daily basis in the bar charts is always identical to the corresponding day of the previous week.
(As an example, on a Wednesday I always use $3.87 worth of electricity!)
I run my own spread sheet to collate the reads but the information I'm receiving is inaccurate and makes the exercise pointless.