It's a bit tricky, the fp rate is not ideal, it does wrongly beep from time to time. I haven't really had a serious false negative, but did have some true positives :)

About the hard numbers, it's tough to test it quantitatively, because there's not a lot of data for babies in danger :D and I hope it stays that way

In general, I'm hoping that the open models will get better, there has been a lot of acceleration in video modality recently