We just finished our first game of TI4. I know it's kind late for that, but we were committed to finishing our Imperial Assault campaign before diving into TI4. The game is Sol Federation vs Emirates of Hacan vs Universities of Jol-Nar vs Barony of Letnev.
I think we did a pretty good job playing by the rules (there were some minor oversights - nothing big), but please don't come in expecting to see amazing play. We were all figuring things out for the first time. That said, the game was definitely a fun space opera that I'm excited to share with other TI fans.