Highly central CBD location, literally everything at the doorstep (including Duke’s Coffee!).
If you’re a light sleeper, bring earplugs for the later night and early morning tram sounds right out front- luckily they don’t run all night. Otherwise no people noises for no bars on the block. Personally I love the bustle of being right on Collins.
I stayed for a week for work (2 doors down from my office!) and it really felt like my own apartment, in a secure building, with coffee provided, kitchenette, washing machine, etc. I would absolutely stay here again if I go back to Melb for work.