Hello,
The notification banner that appears until a visitor closes it is a nice touch. On the propulsion theme, I tested the box grey style setting. The banner appears over the sub-nav menu. If the customer does not click away the welcoming banner, then the banner ends up hiding the account, check out, cart, etc. links. I had a customer try out the test site that could not see instant access to his shopping experience w/ those links hidden.
I modified the banner that comes with woocommerce to display notifications but the customer does not have the option to make that banner go away. Also, I rather have it so that other users of the site can easily modify the banner through the theme itself. Any way to re-locate the included banner with Propulsion to the top of the screen so it does not hide the sub-nav bar?














