The new format looks good for me. I think it's more user-friendly and shortcut your way in website navigation.
I still can't figure out how they're choosing which links to display as sub-listings. Some of the listing for my sites are pretty obscure....not even part of my main menu.
I have a forum where google decided that a thread about sex shops is very important and it is showing it as a sitelink.
I've never been able to get that to work. It always says, "Google has not generated any sitelinks for your site." But it does...and has for years now.
Strange... I can see 6 sitelinks generated for one of my site in webmaster tools yet I can't see it on google result. Btw, one of the title links that google generated is not the same as the title I use on the page but it's the same as most of the backlink anchor text to that page. Perhaps google use it to generate sitelinks?