A woman struck in the back of the neck with an axe in a random attack inside a Sydney 7-Eleven store says she can get on with living her life after the NSW Court of Criminal Appeal ensured her attacker would spend much more time in prison.

Evie Amati was sentenced last year to nine years jail with a non-parole period of four-and-a-half years for attempted murder after attacking two people with an axe at the 7-Eleven in Enmore in January 2017.

Watch the video above: Axe attacker jailed for nine years

But the Crown had argued the original sentence was so manifestly inadequate it was an "affront to justice".

On Monday, Amati had her sentence almost doubled.

More on 7NEWS.com.au: Evie Amati: Jail term for 7-Eleven axe attacker 'manifestly inadequate', appeal told

Amati's first victim, Ben Rimmer, suffered a fractured nasal bone, eye socket and cheekbones, and bled profusely onto the petrol station shop's floor.

Sharon Hacker, struck in the back of the neck, had the potentially fatal blow softened by thick dreadlocks, while pedestrian Shane Redwood blocked the axe with his backpack, the court had been told.

'Profound' impact

Rimmer had told the court he did not remember much about the incident but said the impact on his life had been profound.

"I honestly don't think I will ever be the same again," Rimmer said in his victims impact statement.

"Being attacked for no reason and by a complete stranger is something that is very difficult to overcome and even more difficult to describe in words.

"One of [the] biggest challenges I am experiencing is accepting my altered physical appearance. I have significant scarring and changes to my facial structure.”

Tinder date

Before the late-night attack, Amati had been on a Tinder date, felt shamed for being transgender and took a cocktail of alcohol and other drugs.

"One day I'm going to kill a lot of people... For hating something so innocent," she messaged her date an hour before the attack.

Amati's barrister, Peter Lange, had argued the original sentencing judge had taken into account several unusual features, including the interplay of gender dysphoria, a depressive illness and drug-taking.

Substantial impact

A jury previously rejected her defence of mental illness but Judge Williams found special circumstances on sentencing Amati in the District Court.

In the NSW Court of Criminal Appeal, Amati was resentenced to a maximum 14 years jail with a non-prole of eight years.

The court agreed the sentence was inadequate and took into account the substantial impact the attack had on the victims.

Better precedent

Outside court, Hacker said she was pleased with the decision because it sets a better precedent.

The Sydney mother had suffered continuing nerve pain and psychosocial problems following the attack and had previously spoken of the difficulty of trying to protect her daughter from coverage of the incident.

"I don't think the previous sentence was actually a proper deterrent for anyone doing a similar crime in the future," Hacker told reporters on Monday following the ruling.

Sharon Hacker speaks to reporters outside a Sydney court. Credit: 7NEWS

Hacker said she hopes the time Amati will spend in prison will allow her to repair some of her own personal issues.

"Although jail isn't the perfect solution it's a better solution than being left in a life you are not happy with," Hacker said.

"I actually feel ... now I can get on with my life that there's a little bit more closure ... and keep going on and living because that's the chance I was afforded after this."

- with AAP