Edit: (pics taken at lvl 19)

From reading some of the posts here, I expected a somewhat smaller spider.
I just tamed her, and she shrunk to the same size as the Myst Leecher I tamed to help me fight my way to her.

When I set her on a mob, and she gets some distance on me, she does seem very small. But standing next to me she seems more like a 'normal' size pet. Perhaps her 'skinny' legs make her appear smaller or something.



She also makes the same combat noises as the Myst Leecher, so if that doesn't appeal to you, be warned.

(Sorry for being a stickler, but she is female btw. Quest log refers to her as "matriarch" :)

Very cool pet IMO, though I don't know how her stats compare to others :)