EotM is actually pretty fun. The map is spacious and interesting and there are plenty of major and minor objectives to take. The biggest differences are:
1) The map is floating over an abyss and there are lots of choke points so therefore lots of opportunities for "gravity finishers." Wish I had recorded a clip of me fearing 3 guys off a cliff at once. Hehe! You will definitely want to have a knockback or fear type attack available as well as stability. If not, keep your back to a wall if you can.
2) There are not large open areas for battles so when zerg meets zerg, they tend to bog down around choke points. Also, lack of good communication means larger battles are less fluid.
3) NPC Veterans are TOUGH! Soloing supply depots is impossible, and you do not want to take on NPCs if you are outnumbered.
4) Opposing players are a lot easier to kill. Lots of pve'ers checking out the new content and low tier players mean skill levels of enemy players is low. I imagine the skill gap will close quickly over time.
As guild wars 2 populations start to fade as newer MMOs like wildstar and ESO go live, I would not be surprised if all wvw maps become like EotM. It would make a lot of sense to solve the low pop issue by combining multiple servers on one map.