Stayed here during the Metro train construction week. Paid an extra $1 each per day for buffet breakfast. Simply asked the waitress for fried or poached eggs in addition to the other buffet offerings.
The Mercure is 50 mtrs from the Ibis and is an older hotel.
But being older did not mean a lesser service. We were greeted by a lovely smiling lady from NZ on arrival and given a room on level 12 at the top of the complex, looking north. An excellent view towards Vic Market across the road and Melbournes Northern suburbs.
Room was quite adequate with a comfortable bed and complimentary water bottles on arrival. Staff in the dining room were also very friendly and accomodating with requests.

What a fantastic find to not have to endure back pain all day from the Melbourne trend of getting marshmallow soft mattresses - the Mercury’s bed provided fantastic back support, despite my concern the Queen size would be too small. So nice to not feel the other person in the bed’s every move as you do with so many terribly mushy soft things they call hotel mattresses in Melbourne.

Nice location, very polite and helpful staff and contemporary breakfast room as well. The kitchenette is a lovely bonus for a room that is a bit on the smaller side...just wish the room doors could have some capacity to close quieter as you will hear doors slamming as people come and go all night / early morning.

Located near the Victoria Market, the Mercure was great for an overnight stay in the CBD.
During our stay the Mercure offered $1 breakfast promotion which included scrambled eggs, bacon, sausages etc. amazing value, and the coffee was good too.
The room was a decent size and relatively quiet.