I think the main point here is don't try to be preemptive in using this tool, use it only if you already have ranking troubles.
With a Google link related update always around the corner, webmasters should be wary about keeping their link profiles healthy with a regular housekeep. And that's a delicate balancing act, between loosing immediate ranking with revenue, to building a sustainable site.
I've seen big sites taken over by new SEO admin, cut their questionable links en-masse, and guess what happened? They tanked. A real mess.
We need to hear over the coming months what the effects are from this tool, but personally I think anyone working on bad profiles needs to have a careful action plan, before launching into things with this tool.