Still, she's squishy. If you build her pure damage you will be taken down in about 3 seconds and become useless in teamfights making that "pure damage" worthless.
If you get armor, magic resist, or health runes then I might skip Frozen Mallet but I build her runes pure damage so I need some defense of any kind.
I'm not voting because I don't totaly agree on skill order or in the runes but the rest is great so I'd say it doesn't deserve a +1 nor a -1

frozen mallet is not realy a good item on vayne you need pure damage on vayne

Short and not really useful, but trollvoted

Hmmmmmm.
My suggestions:
Some coding, make it look perty.
Fix up your build. You, honestly, just posted the normal AttackDamageCarry build used by everyone. It lacks originality, no "pizzaz" to make it stand out.
Zero♥

I suggest enabling the "Comment before Vote" option.. 'Cause you just got troll voted twice.

Otherwise, you have a really nice looking guide, a little more pictures/banners and content would make it amazing. :) However, I do like how everything is laid out, and I really feel bad about the -2 you got just 'cause you didn't enable something.

So, +1.