Mine are going back, walking around this morning they fell out 3 times randomly!!
ANC really isn't as good as I'd have hoped, the SQ is good but I think the normal Airpods are better value for money.
I tried some yesterday and they didnt feel very secure (in my ears) but I see so many people on the train wearing them they must be doing something right! Will hopefully have the B&O ones within the week and see how they compare, but as they are free I can't complain too much!