I was assigned an Orange and black Outlands spider. I chose Deathskitter, a lvl 64 elite from Terokar Forest. He was easy to find and there is an area on his path (ditch sorta looking thing) to stand that is out of range of the other spiders for untroubled taming. At level 70, he did me quite a lot of damage. Nearly killed me actually. I recommend a frosttrap. And not standing in front of said frosttrap when you cast tame.

He shrunk an amazing amount when tamed. Compared to my Tauren he looked like a vanity pet, which I found rather endearing.
The model is awesome and nicely detailed. The animations are, well, spidery!

I think the skin is beautiful. It reminds me of RL orbweaver spiders.
The family skill would be great...on a shorter cooldown. It just doesn't come available enough.
How convenient (or annoying) are their food requirements?
He eats meat, which is one of the easiest foods to find. Seeing I have other meat eaters, I always have some on me.
Will you keep the pet, or consider another from the same family in the future?
I have released little Skitter, but come Cata, I will save a spot for him. I had planned to get a tarantula for this toon, but I like this little guy. The emotes provided by the pet emote addon for the spider family are wonderful. The model and skin are very appealing to me.
Did you learn anything hunter-ey from this pet?
Tanking with a cunning pet is not advised?

* Try tanking an 80 70 elite with your pet
Yeah...that didn't work out so well. He tried, but was a bit too delicate and only lvl 68.
* Level it a level or two
Took him up to 68. It was not the easiest. He seemed to loose aggro easily and was easily injured.
* Do a heroic/* Do a battleground
Nope
* Check the pet out in different lightings
The lighting in his home zone is terrible. Out in Nagrand, even at night, he brightened up and looked lovely.

* Check out swimming and possibly levitate animations (if any)
The swimming animation looks just like his walking animation, disappointingly enough.
* Get a screenshot of you and your oddly fitting or entirely mismatching pet!