Unfinished, lacks any decent crafting, terrible UI and probably the worst MMO for userability but....
WAR has tried in many ways to clone WOW but in areas where they should have really cloned big time, they didnt. WOW is full of nice touches - You can link to items in the chat bar, for example, or, click on an item and search for it with ease in the Auction house.
WAR has none of these neat features. The Auction house is terrible in design and extremely flawed. It takes some time to master how to actually find anything you want.
Yes -
It's all about the RvR in WAR - which is exciting and in most cases alot of fun. You earn good XP (and man there is some serious grinding to do) in RvR and with a decent guild, you can really make a difference in the war.
Running around camps, you actually do feel part of a war. In WOW, you feel so detached from anything to do with the epic struggle but WAR brings it right to you. Whilst I was in a war camp, NPCS would cheer when a control point was captured by real players - excellent stuff.
WAR needs alot of work still and the recent patch hasnt actually fixed anything(the damn EULA STILL needs to be scrolled down to close it every time you log in) but the future is bright.
It wont reach the dizzy numbers of WOW - Blizzard have polished that turd so much that people will find it hard to leave. But if pvp is your thing, WAR is for you.