It's an excellent game if you haven't played DOA1/2, but the lag can be awful in the arcade rooms (and 90% of the games are set up this way). Only play with people in your region, as the latency issues are almost as bad as Steel Battalion: LoC.
FYI on OutPost, they don't get their orders in until the week after. If you're lucky you'll get it next Thursday...IMO it's not worth it if Gamestop has a bonus item plus free overnight (esp. since the final price was $50, not $55).
I was in BestBuy last night; they had dozens of copies listed at $50. This must be a local special (or a mistake), please edit the topic to "YMMV."