I can't knock something unless i've really tried it.
Well, i did the whole BFR experiance. Got the adv. one, and tried it out.
The thing isn't bad for warding off a few tank here and there, as long as the tanks aren't in groups. You can take on maybe 3 tanks at most, if your lucky.
However, this thing has less armor then a tank, i'm positive. This thing will die so fast it's not funny.
Still not a bad weapon, but not worth 9 cert points and a 25 minute timer.