Just came off the back of a 2 hour match with my GF. I was playing NW and Bara and she was playing Targ and Tyrell. Basically the wall came out super early for me and I spent the entire game going 2nd and making hardly any challenges but always making sure I had the right defenders out. I won by 1 power. That's just great thematically!
Great to hear a good first experience! I think you'll find the game speeds up a bit (an average game really is 30-45 minutes, and "tournament" rounds are an hour and rarely go to time) as you get more familiar with the cards, but even as they move faster you still get that occasional gem of a 15-14 game. Love 'em.