We stayed at Quest Apartments in September 08. They are located in the middle of Darwin CBD, and it is an ideal location. They are next to the Woolworth's supermarket which is great if you don't have a car and are wanting to be self sufficient.
We stayed in a one bedroom apartment. There was lots of room. A full sized kitchen with everything that you would need, including plates, cups, frying pan, etc. Also had a small laundry with washing machine and dryer.
Bathroom was large, but had the shower over the bath.
Dining/lounge room had a large dining table, 2 x 2 seater couch and a small TV with DVD player. Small balcony off from lounge area.
Rooms are serviced daily.
Has a nice pool/BBQ area that includes the BBQ utensil basics. Nice shade cloths over the pool.
Just a short walk to Mitchell Street where there are lots of bars and pubs to relax in.

Approximate cost: $190