I don't know why I bought this so late in the game. After all, I was ACTUALLY THERE!
At the time, I was in Japan for two whole weeks, which also happened to be my last trip to Japan. That trip was to attend Suara Live (x2), Momoi Haruko fan club event, Umimonogatari radio recording, Shouji de Ocarina (to see Miyukichi!), AquaPlus Festa 2009, and while at it, also the Tamura Yukari live in Fukuoka. I did also show up at Comike for a couple of hours. While at the Momoi event, a Momoist sold me his extra ticket to this event. Since I was free then, I said why not? At the time, I knew almost nothing about this series.
It turns out, those tickets were in short supply. A guy I met at the Suara Live apparently couldn't attend it because he couldn't procure a ticket, and he came from pretty far, too. Funny thing is, there was ANOTHER extra ticket among the Momoists. Never underestimate the Momoists' ability to obtain event tickets!
Anyway, good video quality and decent audio quality (only checked 5.1ch track). Can't really complain, although I mostly just watch the two tracks over and over. Which two? See (*) below.