This game is seriously awesome. Even if you don't want a whole new RPG, it gives enough ideas that are easily portable to still make it worth the purchases.
Icons, your unique thing, the surprisingly elegant handling of skills through backgrounds, the escalation die...
What I love most about this system is that it encourages flexibility and is actually robust enough to support that flexibility. It really encourages collaboration between the GM and players.
Seriously, why haven't I heard of 13th more often? Is it because of being overshadowed by 5th edition, or was it just not publicized?
You were in wrong place, wrong time?
I thought it was quite publicized but my perception might be skewed because I heard about it early enough to participate in the second or third phase of the playtests.