If Dio is vouching for the Greenhouse I'd go with that. You're probably better off being in the CBD so you don't have to buy a tram ticket every day, then you can always duck out to St Kilda any time you want to check it out.
The Espy is awesome.
One of God's own prototypes. Some kind of high powered mutant never even considered for mass production. Too weird to live, and too rare to die -HST