Just an update, the hotel opened at the end of April 2018 and I stayed for three nights this weekend. The hotel is very nice and the rooms are large with enough room for a 3-seat sofa and a 2-seat table/desk. The bathroom has a separate toilet and sliding doors on two sides that open the bathroom up to the main room. The entry and sitting area have timber laminate floors and there is carpet around the bed. The décor is stylish and modern with lots of timber look tiles and veneer shelves/cupboard doors.
The hotel complex contains a couple of restaurants and cafes around a central square off the hotel. There's a burger bar that was offering $1 hamburgers on Saturday and line was huge. The burger bar accidentally set off the fire alarms twice in the first few days and the entire complex is on the one fire alarm, so hotel guests had to evacuate. There are two historic buildings in the hotel complex and the hotel's signature restaurant is located in one of these buildings.
The staff at the hotel are excellent, they are friendly and helpful. I had access to the club lounge and the staff there would have chats with you whilst going about their work. The staff will be the hotel's best asset if they can keep up the high standards.
The hotel's main entrance and lobby is off a driveway that links Hay Street to Murray Street and can be easily missed when coming along Hay Street. The Uber drivers dropping me off and picking me up went to Irwin Street, which is on the other side of the plaza with the restaurants and burger bar. Hopefully as Perth locals become familiar with the hotel this confusion will diminish.
All up, a nice place to stay in Perth.