There are no degrees of uniqueness. Something's either unique or it isn't!
If this is what you think, I encourage you to do more research on this topic. It is certainly acceptable to use "as unique," and it has been for longer than my family has spoken English (at least 90 years on my dad's side).
"Truth and love are my law and worship. Form and conscience are my manifestation and guide. Nature and peace are my shelter and companions. Order is my attitude. Beauty and perfection are my attack."