TL;DR
Pros:
✅ amazing view, especially to wake up to
✅ 5 mins to southern cross station, 1 min to tram stops
✅ 5 mins walk to Woolworths Metro, supermarket
✅ decent gym, good pool, spa, and sauna
✅ good couch, I'm 6ft and slept on it just fine
Cons:
❌ noisy trams and trains nearby, but good soundproofing windows

❌ tight parking garage, and the auto door sometimes doesn't respond

❌ the room can get a bit stuffy on warm days, but it's good in the living room with the AC on
❌ shower floor a bit slippery
The hosts were fantastic and prompt. Since booking a month in advance of my stay, they were always ready to respond within five minutes with any of my questions, and were always polite and friendly.
Downstairs on the street, there's an amazing bagel place that's good for a post hangover breakfast, just cross the street and it's there. It's reasonably priced too.
The apartment is a bit small, but not claustrophobic; it's tasteful in decoration, and the view is great for photos