It's not merely booleans. It's dynamic booleans.

We won't know fully what it is until it comes out but they are saying it works seamlessly with Modo's existing subd pipeline. Everything is dynamic until you freeze it so fillets can be adjusted freely, boolean'd shapes can be swapped out or edited at any time, and when you're done the Groboto style mesher kicks in and gives you a sub-d friendly mesh.

Of course it can be used for precision modeling.

Seriously, it's a game changer.

Will it be the only tool you'll ever need? No, of course not. I don't think a single tool to rule them all will ever be created, but it's a serious step forward from where we are today. I can't WAIT to try it out...