Is First Order Storm Trooper Worth Building Up?

Mojavelandbaron

Has anyone gotten him up to a high enough lvl to tell if he's worth it? His counter attack makes him seem promising, but I can't tell yet if Abilities will allow him to develop this more.

C00L_Story

Currently have him at 6 stars, level 76, max non omega abilities, and equipment level 9.

Eh, he's so so...but I like him anyways.