My stay with Rēndy was amazing. I've stayed at many Airbnbs in Melbourne, but if anyone asked me to recommend one, it'd definitely be this. Rēndy is just the loveliest person. Not suggesting that everyone arrive late, but as I couldn't get an earlier flight, Rēndy actually stayed up till 2am to allow me to do a late check-in for my midnight flight, which was so kind of him.
The house was spotless, and yes you get your own bathroom (which was equally spotless). There's a small guide in the room with all the instructions you need for the house and navigating Melbourne, which was a great touch. Speaking of kind touches, because Melbourne banned plastic bags, Rēndy also prepared one in the room for guest use, which was really thoughtful. The apartment building itself has great amenities, a functional gym, and even a 'library'-lounge space to work out of.
The only thing I would comment on is the location. There is a tram stop right outside the apartment AND a Skybus stop nearby, however it's only convenient if you're primarily going to the CBD. I kept running to the Prahran and South Yarra area, so it called for longer transport times for me.
The place is also near a Woolies and a great wood-fire pizza place at Docklands District. However you will have to tram to town for cafes...but I think it's a fair trade off for a clean and peaceful apartment.