s Sange Yasha bad item for Luna?

Sange and Yasha

Luna Moonfang - The Moon Rider

According to one of my visitors and commentors, the sange yasha is bad item for Luna because it is like the Stygian Desolator that Luna can not able to attack. Is it that bad item for Luna? Well, the new version of frozen throne dota all-star, Luna can use sange yasha and the maim of sange has no effect when Luna is attacking, but for me I used it for hp and speed purposes. I've noticed that when luna have sange yasha, the movement and attack speed are increasing and it is good for here because it give here a chance to increase attack speed with here skill Moon Glaive is more powerful and bouncing to both enemy's heroes and buildings. It also give here chance increase life steal percentage because of attack speed when luna has helm of the dominator. Whether Sange Yasha bad or good for Luna but for me is good item and it depend on how to handle the Luna.