I'm going there. It'll be my 2nd time going.
It's held at the same location as Ohayocon, but it's a smaller con compared to Ohayo. By smaller- If Ohayo can gain 10,000-12,000 in attendance, expect to see 3,000-4,000 at Matsuri. If I remember correctly- The dealer's room was really small. Still a good number of dealers for Artist alley though.
If I were to rate it- i'd give it 3 out or 5 stars.
Awarded the Cosplay.com Congressional Medal of Troll Smashing - because you, with copious amounts of sarcasm and sense, had viciously battled the troll known as Proud Asian since the beginnings of the thread created on Thursday, June 14th, 2012. While the troll known as Proud may not be truly smashed, many other trolls would surely have been felled by your wit!
Awarded by the user Reily96