Im use it for savinf account, if you want to withdraw your money you must waiting 48hours to get confirmed,
example if you submit withdraw Today at 06:41:16 AM you will get your money (btc) in 2 december at 06:41:16 AM

What if i need to withdraw fast and if i wonder about the bitcoin price drop? how coinbase will solve this? Personally i have started to store there but not in this vault