Interesting that you choose to give them out based on AARs.
Being it's going to be a beta test, one might have considered giving a few to people who are spending their time posting about bugs they have found in Sengoku. Surely it would be more productive in the long run to get observant bug hunters rather than fanboys on board. Though I understand you need more enthusiastic publicity from the community regarding your latest release.
aye that's exactly what this is, so pretty creative on the PR side of things for once and especially after hearing the comments from the recent "Bonus" Dev Diary that was written today. Since supposedly the Beta is pretty much in a near finished state for CK II based on the comments the beta testers posted within the dev diary itself, so those who get in will be in for a treat to play a near finished game months before it's even out.. Granted, I'm sure there's still grunt work to be done as the last stage of development cycle begins, so it may not be all fun and joy while playing

.
Personally, I won't be doing it, for one I can't get into Sengoku as much as I want to and to write an AAR about it, probably not gonna happen, lol.. Instead, I guess there's always playing Sengoku on and off in my own time (probably will simply play more so after the Patch) and good ole Crusader King (the original) which I've been also having a blast in playing lately too , hehe.