We spent 2 nights at Jane's and I just can't rave enough how nice it is. It's actually better even than the photos would suggest. Everything is very modern and VERY clean. The apartment is larger than you'd think from the photos; à long layout with large lounge, galley kitchen with dining for 4 (all along a bench— though there is also a dining table in the lounge room we can seat 6 or so), a large bedroom with queen size bed and an enormous and modern bathroom, past the bedroom. Running along all this is a rooftop balcony (shade umbrella provided) which was the perfect place for an apero.
The apartment is on the back side of a complex, close to King St but not on it, so we didn't hear traffic or neighbourhood noise. The area is full of great cafés, restaurants, bars and pubs so we're walking away a bit fatter than when we arrived.
Overall a great stay and we will be checking to see if it's available when we return to Sydney on a year !