An example being something like needing to use a suboptimal wiring layout in a bit of custom electronics because the craftsman assembling it has to be able to reach certain places at certain steps. MHM doesn't add tools, but it does let you do things similar to what a lot of small tools would and use what you do have in otherwise impossible ways.
Or as Yog pointed out, it can help with welding.
One of the most frequent problem you can get when welding little things is *I really wish I had more hands*, because you have the welder in one hand, the solder wire in the other, and no third and fourth hands to take the things you want to weld.
Anyway, my plan is non valid, changing vote:
[X] Yog