I haven't seen a boxscore. There's a Cubs.com article, and Bruce Miles was kind enough to give us play-by-play - the game thread is in the Game Thread Forum.
I have no doubt it varied by game. I did end up with field box seats to a few games purchased for friends by choosing best available. Were you buying 6 seats at a time? For high-demand games, that limits box seat options.
If you selected "best available" you could end up with seats that are ranked better than Upper Deck Box in the system (like Field Box or Terrace Box seats).