Warrior General Games

At what level does this become a decent VA or does it ever do so? What are its Pros and Cons?

On out blockers like TE's, semi it starts to work well. Pancakes produce its best att's so if you have some out front blockers say university and up it is good but specific to a type of blocking dot that can over power others

Here's the kicker though (and, for the record, yes... I use it myself); Like just about every single SA and VA out there available, GLB went out of it's way to design this game with Political Ideology throughout. That is to say they are extremely evasive in their definitions of what the SA's and VA's do... and then ask you to 'trust them' that they actually work exactly as advertised. There's no definitive proof that it works as promised... works as often as promised... and is worth what you invest in it.
I'm with Skib mostly... it works well for dots that generally have an advantage over their opponent... Say a Power WR blocking a CB... or a TE blocking a LB... even a Tackle against a pass rushing DE. When effective, it really takes a player out of the play because of the time lost to getting blocked, falling down, and having to get back up and back up to full speed again. Con would be what other VA could you replace it with that you believe would work more effectively than SB. That and just know you'll never know if it works as they promise, as often as they promise.