Personally I'm loving it. I got infected on the way into Shattrath and legged it for the UC portal in the hope of finding a healer before the timer was up. Then I noticed the timer was only a minute - and subsequently found they've lowered the number of healers - so made it to the inner tier of the magic quarter before turning.
So I took out the tailor trainers instead, then converted a couple of Deathguards and then me and my undead crew jumped a lvl 70 druid and he joined in and we basically scoured half of the inner circle, a couple of auction NPCs (and PCs auctioning) the Frostwolf advisors, an elite NPC and then headed for the bank area where I got we took down a troll priest trying to disinfect and a couple of others. People complain about the lack of meaningful world pvp in WoW and finally there is - it's just that you can't elect out of it.
My only complaint about being a zombie is the durability damage - that should be removed as it's so easy to die.
Should I also mention that I'm currently also trying to level up to 70 before the xpac hits too. I haven't found that this has hindered my play at all unless I choose to get involved. Of course, I don't spend a lot of time in the capitals so I can avoid a lot of it.
A point can be MOOT. MUTE is more along the lines of what you should be. - WayAbvPar