I want to complain about building outlines a little bit. It seems to be a feature that's really misleading when you're using Map Maker. Whenever you're adding a point you always get the option to add a building outline, right? Makes sense. It's really easy to do and adds some detail to the map. But building features are treated completely differently when it comes to Places (erm, sorry, Google+ Local) and most of their details never show through. Not to mention they don't show up on searches.
Let's take this feature I added when I started mapping things a really long time ago:
It's a little restaurant. Looking at the Map Maker entry it's perfectly fine. When you search for it in Maps, however, you cannot find this feature. The search ignores it. Instead you get the bot-added POI only that was added afterwards:
http://goo.gl/maps/ObmI
If you play around enough you can get the building feature as an old Places page, but it contains barely any details:
http://goo.gl/maps/5UwN
Most of this isn't news for people. It's common knowledge on the forum that the best way to map a business is to do an unmarked building + a POI or maybe a boundary for some features. But there is nothing to tell that to a new mapper. Because mapping a building with details is technically correct, as far as Map Maker is concerned, Google Reviewers and RERs will approve them, but it probably shouldn't be that way.
I would even go so far as to suggest that you shouldn't be able to create building outlines for some categories. You could really limit marking creating building outlines to Building, Apartment Building, Townhouse Complex, and maybe School and Hospital.
Or Map Maker could automatically do what we all do anyway - when, say, a Restaurant is created with a building outline it could just create the two features automatically: the POI for Local and the building for Maps.
I think doing something about this could help improve the quality of both Maps and Local.