Take it.
Its is extremely worth the 5 extra points.
It wounds ANYTHING on 4+ and can even hurt vehicles if you get lucky. So, marines, carnifexes, wraithlords....whatever. 4+, no save.
That's worlds better than a Str 3 power weapon which will only hurt other T 3 creatures on a 4+.
Basically, the only real choice is between the Punisher or the Agonizer. I think a mixture of the two is the way to go.
Its is extremely worth the 5 extra points.
It wounds ANYTHING on 4+ and can even hurt vehicles if you get lucky. So, marines, carnifexes, wraithlords....whatever. 4+, no save.
That's worlds better than a Str 3 power weapon which will only hurt other T 3 creatures on a 4+.
Basically, the only real choice is between the Punisher or the Agonizer. I think a mixture of the two is the way to go.