The layout is fine as it is, but it just lacks custom options. Of course being able to change background and foreground colors would be nice too (and can be done already with custom css of course).
About the opening hours, would it be possible to retrieve opening hours from Google's my business API? That would be handy especially in cases a company is not always open full week (like in Finland we do have quite a few special holiday dates).
Personally I would like to highlight some of the most important pages on my site in the mobile bar. I get the ideology behind the current bar that you have easy access to phone number / email etc but I don't have use for address info (map) and because of the issues mentioned above about the opening hours I would rather use that space for custom links and icons instead.