I put together an uber-simple child theme, called “Neat Child”, which you can download here (https://github.com/digisavvy/neat-child).
This theme isn’t for the faint of heart. That is, it’s not yet easily customizable, whether you use it as a parent theme or as a starter theme. Either way, there’s a curve to learning it. The good news is that I don’t think it’s all that hard to get ramped up. Obviously, the big thing here is that you should learn SASS, if you really want to use the theme.
If you have any thoughts on the theme feel free to let me know.