The Dwellington is definitely one of the good ones -- the modern, tidy, and well-kept places you experience during your travels that feel a little bit like home (if you are used to a clean and organized environment). Still, it's not the best one we've seen on this planet so far, but you can absolutely enjoy the common area and also the spacious dorms.
The hostel is located in a more historic area of Wellington, near all the government and embassy buildings (right next to the embassy of the U.S.). You can walk to the cable car or the Botanic Gardens (lower end) in about twenty minutes. To the city, it takes maybe a little bit longer, but it's still fine for a hostel location. It is very close to the train and InterCity stop and the Interislander Ferry. In terms of shopping and services the location is perfect, since the quite cheap and big New World supermarket is right across the street and there are also banks and all that you need. Parking space in front of the house is limited. If you're traveling with a bicycle, they provide a safe parking space behind the building.
Rooms and Bathrooms
The rooms are locked with cards (as do modern hotels in our time), which is quite practical, since you can easily store them in your purse. There are no in room lockers provided and the insulation of the rooms is typical New Zealand (quite bad), so you should pack some earplugs, especially if you sleep in room one right next to the kitchen and the big TV room. The beds are made out of wood and provide a shelf and a power slot for everybody. The bathrooms are kept quite tidy, and are in a modern shape -- as is the whole hostel. The dorm rooms are quite spacious by the way, so there is enough space to put your bags and personal belongings.
The kitchen is really nice looking and well equipped with herbs and cleaning equipment (only the pans could be much better), but since there are three stoves and ovens available, it's possible to work that out. But there is no microwave, which might be healthier for some people, but still is pretty uncommon for a hostel. In the TV room, you can find games as well and in the kitchen are also sofas to provide some place to sit. It's not a big party hostel, but there are plenty of options to socialize and sit together on the inside and outside. Free breakfast is provided from 8 to 10 a.m., which consists of two types of milk and peanut butter, four jams, two sorts of cereals and bread (also whole grain).
It's a hostel you'd like to stay in, since there are spacious rooms, areas to socialize, and free breakfast and Wi-Fi (which is not the best, as in nearly all over New Zealand).