> how long do you expect the domain switch to take?
> will I experience any down time going from one to the other?
It usually takes from 6 to 48 hours for domain to switch completely due to DNS propagation. During this time some people will load your old store, some will come to a new one, some will load an old one and jump to a new one. Some things can work funny during this time. Please make sure to notify us before making DNS changes so we can verify if everything is set correctly in your store and it ready to go live.