Well, one thing that I suppose makes WAR different to other MMOs is that it is possible to level up without ever doing a single quest. If you choose to, you could spend all your time in PvP / RvR combat.
The interface is fairly standard .. one, two or four bars that you can place your action / ability icons into. Your two main in game stats are health and action points. Each ability you have costs so many APs to use, and your APs regenerate over time. Your health regenerates very quickly when not in combat, which is nice, as it means less time waiting around, and more time fighting.
The characters are graphically very nice, and very in character for what they should be.
Each racial pairing (Chaos / Empire, Greenskins / Dwarfs , Dark Elves / High Elves) has their own areas and missions. You share the map though. On a Core server, PvP can only take place in certain regions. On an Open server, there are no safe zones. With flight masters around you can travel to your allies areas and play their missions as well as your own.
The PvP combat is a lot of fun .. you have open combat areas and instanced missions, both of which will adjust a characters level to a minimum to give them a chance of fighting successfully in an area.
Does any of that help?