Tom's apartment is centrally located 7min walk from Darling Harbour and Harbourside Mall, with supermarkets and coffee shops on your doorstep! The complex has a basic gym and lovely spa, sauna and small pool. The apartment itself is comfy and has everything you need to enjoy a comfortable stay. I can vouch for the sofa bed and say that it is pretty comfortable for a sofa bed! There is no uncomfortable frame digging into your back etc haha. This apartment would suit 2-4 people. The access to the apartment is great, as you can walk through carpark and covered walkway from light rail right to the apartment. I would highly recommend Tom's apartment for travel to Sydney.
The only thing I would comment on is the noise level from traffic on the street etc, didn't annoy me that much- (I slept on the sofa bed in lounge, closest to roadside) but if you are a light sleeper earplugs may be required.