Pros: very faithful to d20 PF system, gives you PnP feeling. Cons: very faithful to d20 PF system, gives you PnP feeling with a DM who hates you. Two problems as of now: bugs and a combat. Bugs will be fixed (eventually, or you can be lucky and never see one). Combat .... is not that simple. The system itself, like any DnD variation, assumes a human DM in charge. Without a living breathing DM the rules have to be seriously altered to make the game playable. And in PF:K they were not (enough) altered. Hence - save your game often and pray to St.Random. You are expected to save often, to know the rules of PF very well and to modify the difficulty level as you play. If you accept those facts - you will be fine and can be your own DM, changing difficulty of every encounter the way you want it to be. If you expect a traditional evenly progressing game - you might find the game unbalanced and way too difficult. My advice - do not give up and simply learn!
