Thoughts on Ground News?

I've been seeing lots of ads lately for Ground News, which seems to be an online platform that lets you compare news sources and identify bias in different news stories. On its face, this seems like a really good idea, and I wanted to see if any skeptics had experience with it or thoughts about its implementation.

I know a lot of folks have an urge to accuse posts like this of astroturfing/underground marketing, but all I can do is promise you that I am not in any way involved with them, nor have I even tried out the service yet. I'm just intrigued. I basically don't look at the news anymore because I'm terrified of letting in too much bias. I used to use Google News to show a bunch of different points of view on the same articles, but now I'm not exactly excited about Google's algorithms controlling what news I see either. If Ground News is a good solution to this, I want to give it a shot, but if there's something negative about it that I'm not seeing, I want to know that too.