I just quit after getting to level 59, so not a noob. While the gameplay is good, it takes a really long time to grind for stuff. Free players like me have to wait ages to get the really good cards. Some content like high-level p2p is completely inaccessible (including the rewards they give). Basically you have to pay at the higher levels to keep any decent progress. So I'm going to find another game where the devs are not so greedy.