They have an OSS version you can host yourself. It fixes the problem of sites not sharing their full text in their feed, by going and scraping the site into a full feed for you.
That’s very cool. I’d also recommend RSS-Bridge, which is another OSS self-hosted tool that generates RSS feeds. It might be useful if you’re looking for RSS feeds for non-article oriented sites: there’s a wide array of scrapers built in (Amazon price changes, Apple App Store updates, etc.) and it’s not too hard to add your own if you don’t mind PHP.
They have an OSS version you can host yourself. It fixes the problem of sites not sharing their full text in their feed, by going and scraping the site into a full feed for you.