The Parazon seems very lack luster. Not only in implementation, but also cosmetically.
It seems odd that the Tenno, supposed masters of gun and blade, are now incapable of finishing off their enemies with the many cool melee weapons in the game and instead are forced to use a glorified Assassin's Creed hidden blade. I'd much prefer refreshed finishers done with the melee weapons we all know and love. Not only for cool points, but for a more seamless melee experience. It looks weird when my Warframe puts away its giant scythe to finish off an enemy with its data spike. I feel as if it was implemented into the new Shadow of Mordor system to give it some kind of credibility.
Cosmetically, it looks completely out of place on Warframes. Steve described it as a ceremonial dagger. Instead, it looks like something that should just be in my gear wheel. I truly hope it's design and implementation are built upon in better ways as the game keeps growing. Otherwise, I'd love to see it go.