@ etatsitna - Premium will get pinged at each and every link and will get to see when the crawlers hit them. We'll also have API integration with a couple of link providers to automatically load in the links. (Automation is where it's at for us BHers!). We'll also have a much higher limit on the number of daily links for premium (5 vs 50K links/day)
@lbtf1 - We closed off beta since we're rolling out this week. And your feeds look correct. Send a support email if you see something specific.
@Jericho - Premium is $15. The system does not submit to feed directories because there literally is no need. The entire point of RSS is to get Google to crawl your links, and for premium guys, we'll ping the links until 100% of them are crawled. Directories are the old school way of getting G to come find your links because they are a backlink that is spidered often. And your assumption of 'feed link' is correct. If you want to change it to something else you can. For most they just want the crawl, but spinning is there for people concerned with LSI.