Medal is just a p2p mechanism right now. It's not really something you get for the coupons or anything, although that does offset some of the cost. It's mostly just for the added benefits that make the game faster/easier for you. Auto-sign in for the daily login, faster spa recharge, 2 extra teams so you don't have to change so often, larger stamina pool, etc. If we get the discount shops and stuff, then it's more of a p2w and might be worth it again.