Just bought it recently and played it through yesterday in one sitting... the whole day. This game is absolutely one of the best games I've played in years. (exceptions are mouse smoothing/ FOV options/ and no pc corresponding button prompts)
I'd really like to find some people on the PC to play invasion mode with. If there's anyone on the Sega forums I'm totally down to play. I'm on steam, but I can be contacted many ways, just send a PM. Thank you.