![Image](https://forums.factorio.com/images/ext/2000dfa804fdead4d338cfe87e950c77.png)
The mining drills cover 100% of the ore deposit, and there's no need for a separate smelting area (more solar panels!). Less importantly, one inserter per furnace is saved by inputting directly from the drill.
The only downsides are that you can only run through it in one direction (not that big a deal unless it's a ginormous deposit) and it requires fancy electric poles.
Too bad it won't work for electric furnaces, since with their 3x3 size there's no way to intersperse them with the drills without missing some coverage.