Sindy Arias and Henry De Los Rios Polania were attacked by Marcus Monzo in their home as they slept.
Henry used his arm to block Monzo's sword as he swung it towards Sindy causing him serious harm.
Their daughter, aged four at the time, was in the house as the attack happened, and the court heard how her cries may have prevented Monzo from causing further harm.
They've both given separate statements to the court.
Sindy said their daughter still asks "difficult questions" for her age and struggles to sleep. She is on the waiting list for therapy.
Her relationship with Henry has been "impacted by the trauma", and they were hit by unexpected costs in the wake of the attack.
She asks the court to consider their "painful and destabilising experience" when passing sentence.
'Learning to live again'
Henry said he is still waiting for surgeries just to regain basic function of his hand.
In the meantime, he's been unable to return to work, losing his burgeoning IT business - which "devastated" him both financially and emotionally.
Even tasks such as trying to tie his shoelaces can be frustrating, if not impossible.
"I stand here not just as a victim, but as a survivor learning how to live again," he said.
Some days are "better than others", but he is "still here", after finding strength he "didn't know" he had.
And he hopes justice today reflects the long-lasting damage done to him.