"It's fantastic. The only thing that is missing is groceries, but there's a f***ing Coles right over there, so it's fine.
"It has everything, the clothes are spot on – I just got these cute a** shorts for five bucks."
While Katie is a fan of Kmart, the expat can't same the same for one of its biggest rivals, which she says doesn't compare to the American version.
"I've been to Target, which Target in the US slaps way more, not going to tell a lie," she said.
Katie was also blown away – like Aussies were this week when they discovered the "W" in Big W stood for Woolworths – at the link between Australia's big supermarkets and the department stores.
"I also just put two and two together and Coles and Kmart go together and Big W and Woolies go together – that's a mindf**k, I love that," she said.
People on TikTok also loved Katie's fascination with Kmart, with her video getting hundreds of comments.
"Target is America's Kmart. When I lived in America I went to Kmart with such high expectations haha," one Aussie who had lived in the United States helpfully explained.
"You don't go to Kmart with a list. You go to Kmart and let it decide what you need," another person recommended.
"As an Australian this is now my favourite video on here," one follower also commented.
Back in July, British woman Jordana Grace went viral when she made a TikTok video to warn about the dangers of Kmart.
In it, the comedy writer explained the discount department store poses a real risk of doing damage to your bank account – and lots of people agreed with her.
Titled, "Things they should tell you before you move to Australia", Jordana revealed she had been unaware of Kmart until she arrived here.
"They warn you about the spiders and the snakes and the blistering heat, but what they don't prepare you for (is) Kmart," she said.
Jordana then filmed herself going to shop at Kmart to 50 Cent's song Candy Shop, with the comedian looking lovingly around the store.
She changed the song's lyrics to: "I take you to the Kmart shop, we're going to buy lots and lots. Do I even need this stuff? My bank account keeps screaming no."
