If you can't read Japanese I'd wait for the US release as the game will be heavy on reading. Personally I couldn't care less about this game. I was gonna get it but once I found out it is not an action game per se, rather a card based board game, I lost all interest in the game. All your moves are based on whatever card you have and your steps are all predetermined by the cards as well.
Who the hell wants to play a Metal Gear board game? I think alot of people who buy this game are gonna be pissed off when they play the game thinking it is the same kind of stealth/action Metal Gear game they have played before. I'm sure someone here thinks this type of game is great, but I'm also sure most people would also prefer this Metal Gear game to be an action oriented game like we all know and love.
