the magnet holds well in pretty much all day to day scenarios and the band is really comfortable.
if you're playing sports, then i would recommend wearing getting another loop just for sports. if something hits the band, it will loosen. also, probably just safer to have a soft band rather than a hard metal band for sports depending on what you're playing.
i have a milanese band so i think it's fine for most occasions. i might reconsider if i was like - part of the wedding party, but probably not if i was just going to a wedding.