User blog:Mmpratt99 deviantart/Is Inkitt a Legitimate Publisher?

I was wondering if anyone here can tell me if this publishing company Inkitt> Inkitt is  a legitimate company or is nothing more then a vanity press? I happened to have an account there as well as several stories on display, and I was debating whether or not I should use their publishing link. I really need some expert advice on this. It seems a bit too good to be true and maybe it is. I'm just trying to decide whether I should use Blurb or this site.