I use these coils in my original Nautilus Mini cartomizer, my wife's Nautilus standard and my absolute favourite: the Silo cartomizer by Beyond Vape.
These coils never give me trouble, the BVC coils seem to last a REALLY long time before we need to change them (& even then they are still usable if somewhat rough in taste). I've never known one to burn out when used at "normal" wattages & as I said earlier are versatile enough to be used in numerous devices.
Finally... The coils (and my other goods) arrived the very next (work) day in Wollongong, in perfect condition, even though I didn't get online to order them until the early afternoon of the previous day.
Kudos to The Steamery and to the Aspire Nautilus BVC Coils.