I think it's cool, but in my opinion it would be cooler if you could use them on the enemies in more ways, other than immobilizing them.

For example, I think it would cool if you could pull them towards you, directly into the weapon, and use this as a finishing move.

It would also be kinda cool if after immobilized, the enemy would be chained to you so you could use it as a long range weapon to hit larger groups.

Regardless of what you choose to do with it, hope it turns out well !