I haven't played GW in awhile, but I loved it just for playing the stories through. The graphics were great and I'm guessing still hold up well. Gameplay is fairly deep and more than simple button mashing. I have nothing bad to say about GW and the only reason I stopped was because I had pretty much done everything in the game.
The plusses are specs that you can load on the fly (and even paste in pre-made specs) and a full set of companions that enable you to do instances solo if you want. The expansions get progressively better and I loved Eye of the North and Nightfall.
Try the free trial
and pick up the trilogy pack if you like it.