All of that is really secondary to why I really enjoy the zone, though.
What makes Nagrand a thoroughly enjoyable zone for me are how the quests are arranged.
Alliance side, there are at five quest hubs in the zone - Telaar, the Ethereal outpost, Altrius the Sufferer, the Throne of the Elements and the Nessingwary base camp. There's a small number of breadcrumb quests leading from one hub to another, but for the most part, they're self-contained.
All of which means a freshly dinged level 65 character can pop into Nagrand and make one circuit of the zone to pick up two dozen quests.
At which point, you can simply continue on a second circuit, killing as you go... with a good chance that any mob you down will help you complete one of your quests.
That's just awesome.
One circuit to pick up quests; one circuit to murder anything that moves; repeat to get whatever follow-on quests are available.
By the time you're finished, you'll have picked up a level or two - or close to three, with heirloom experience and rested experience bonuses - and be ready to slog through the Netherstorm or Shdowmoon Valley. Well, when I say "slog", I mean "do just enough quick quests to get to 68 so you can escape Outland and enjoy the Howling Fjord".
Aretae is about 10 bars away from Northrend, and already he can feel the chill in the air.