My husband and I stayed at the Adina for two nights recently. We found the hotel staff helpful and friendly. The room was clean and comfortable, a little small but not too bad (no real spot to put your case). The bathroom was clean and the shower was quite good. There is on-site car parking with direct lift access from the car park to your room floor. Perhaps one negative is that you only have 30 minutes of free wifi, and it can not be used in your room - you need to sit in the hotel lobby.
The hotel's location is very good, only a short walk to the Bourke St Mall and close to trendy Hardware Lane/St. About a 20 minute walk from all the restaurants on Flinders Lane. Easy access to the fantastic Melbourne trams too.
An enjoyable stay overall, we would definitely stay at the Adina again.