My experience of Cata
The goblins are great fun, although agree Worgen don't "feel" very alliance... they look great but their anims seem a little clumsy. I am hugely enjoying the goblins, although their technology sometimes seems a little too advanced and grates on my world view of wow. Still I can put that aside as they are quite funny.
I am enjoying the redesign of the old world, it actually made me start a new char and level again. Previously I couldn't be bothered with starting again from scratch and doing the same quests with a new char. Seemed pointless, now its fun again.
I have completed the underwater quest chains, and loved the storyline, although I must admit I was keen to get on dry land after a while. "Jewels" Verne is awesome, I hope to see his "ship" again. After a weekend of snowed in playing I am almost to 83, so the levelling is as someone said trivial.
As for still wearing tier 10, I have very few purples left and it makes me sad each time I replace something with a green or blue. Those who are still wearing all their old purples are likely just doing so out of reluctance to go from looking cool to looking pants (fashioncraft is the real game here right?).
That brings me onto another thing, why do they always make helms and such that look ridiculous/downright stupid? I only had tier 9 priest head but wow it looked good, now I look like a budget batman!
Throne of Tides we did last night for the first time, and we beat it. Although it was a challenge, it relies heavily on team work, and intitially whilst our gear is still "green" we all had to pop most of our abilities/spells to get through each boss.Good fun, and its reinvigorated my love of WoW, I was bored of the grind, and played once a week. I don't know how long it will last but for now, I am loving it. Now to finish DeepHolm.
Oh and guild rep and such seems a nice addition, shame my guild is so small.
Overall happy, but but not sure how long term the appeal will be to a small guild like ours.