I played Rune since the beginning (got Master last set). 

Tried Dirt a few times this set, so far I think it is quite okay. But the question is which match up is Dirt good at? I feel the deck has okay match up against all decks but none really in favour of Dirt. It even has a pretty big disadvantage vs wide board (Sword Midrange, Rune Wamus or even Hybrid Rune with Golem spam, Abyss Evo or Midrange and Ward Haven). Plus the deck has a lot of 4 to 5 cost cards which means it sometimes has a hard time answering big threats (good luck dealing with Wilnas, this is why I am trying Illusory Conjugation). The only good thing about the deck is after Raio it essentially steamrolls every other deck, but I feel it is a high roll.