It made him one of the first consumers in the world to get their hands on the new phone, as Apple's Australian stores were the first to open globally due to the time zone.
British duo Lucy Hutchinson and James Griffith, co-founders of Mous, a company that sells mobile phone cases, flew into Australia on Thursday night and made a beeline for Apple's George Street store to make sure their new iPhone accessories were a snug fit.
"It's quite a scary moment for us finding out exactly what the iPhone is like," they told AAP.
"Before we send out our phone cases to everyone who has pre-ordered we want to just check them ourselves so that's why we're in Australia. If it's all OK we'll hit the big 'ship' button."
It was a subdued scene compared with previous iPhone releases, when people frantically queued for days and weeks to acquire the latest device.
It made being first in line a bit easier for Mr Kourouche this time.
Last year, the YouTube tech reviewer says he queued outside for a mammoth 11 days to get his hands on the iPhone 8 model.
"Each year there is a different reason to line up," Mr Kourouche said.
"For the iPhone 8, I had a couple of my mates helping me out ... because I lined up for 11 days.
"But the iPhone X and the iPhone XS I pre-ordered so that was a lot easier. But I still lined up the night before to make sure I got it first.
Mr Kourouche said he lined up to show his audience what the new phone looked like.
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"I just want to get it first so that I can be the first to unbox it and then straight away get that up on the internet.
"That's what I'm going to do right now. Then I'm going to go back and do a full-on review. Right now it's just hands-on unboxing.
"It's a great experience being first - even just being in the queue in the first place."
Mr Kourouche said he was most excited about the bigger screen on the XS Max, and also the Apple Watch.
The Apple Watch Series 4, with a heavy focus on health monitoring, was also launched on Friday.
The watch is capable of taking electrocardiograms and delivering that information to the wearer's doctor.
However it remains unclear when an app for that will be available to Australian users.
With AAP
Tim is the editor of Fairfax's technology sections.
Josh Dye is a news reporter with The Sydney Morning Herald.