Everything but the combat/telegraphs, theme, crafting, skill trees,path system. Its more similar to wow than something like gw2, but its not as similar as a game like swtor or rift. It's just the right mix of old and new for it to feel fresh to me, yet recognizable. Im in love with the crafting system. I also like combat/telegraphs, but Even some mobs around level 15-20 are hectic. Sometimes a telegraph is so fast, that if Im in the center its literally impossible to get out in time. Things like that need worked on a bit more, but maybe its my internet or something. The telegraphs mostly feel like the Mortar Cannon in the Iron Juggernaut fight in wow. If you dont react literally as soon as iyt appears it hits you. You have maybe 1/4 a second reaction time. Thats fine and all, but people with bad internet connections are going to hate it. Most of the difficulty of the game is training your brain to recognize the meaningful telegraphs going on near you, and how when to avoid them.