Shadow of Viels is great in PvP, and against fallen in PvE. It has basically the highest aim assist (which slows down your reticle movement when on a target player).
The reason people choose a sniper like this is because it has high enough impact to kill an enemy on respawn with a headshot. Other snipers like the E.spear and Her benevolence can do this too.
I would use SoV until you roll Unflinching, hidden hand and scope of your choice for H.Benevolence.
I recall perks on this one are poor. Gun itself is good.
Honestly you are better doing 32 and 34 each week and then taking the judgement chance.
All the armour and weapons variks sells tend to have poor perks so unless you are needing the armour to get to level 34 you are better taking a chance.
Just my view.
I want it but it's that shank burn I'm hesitant on. My other snipers will be way better if I use etheric light on it. Plus you can't reroll fallen weapons.