well to start up, valor is a great game.
You wont find any active gameplay in it, but a lot of active brain using.
I say its a 50/50 game because you have world where its totally bad and unpleasant to play and you have worlds where you have such a great time you get addicted.
It all depends on your activity in the chats and your will luck to get into what i call the privileged circle of the top guild wich mean if your not in the middle or high rank of a guild, youll most likely be left rotting at the end of the member list as your not an asset to the war effort. And if you join a world wich as already started and top guild are well established, just leave and find a newly fresh world cause or youll end up wasting your time (and money for some) on a despersate cause with no gain at the end but the photo of aurora politely telling you that you just got owned badly...
In breif, its a really good game if your in it.
try it, and see for yourselves.