This is the third time I've stayed here as the location is fantastic and it's affordable (thanks Tu!). I've stayed in both rooms and Room 2 is way brighter and bigger for just a little bit more. The only negative about this room is being next to the bathroom which has a noisy fan that will go on for ages after the light has been switched off. But it's bearable and nothing can be done about it.
The only downside is the late checkin time but if you have minimal luggage you can leave it at Te Papa cloakroom and pretend to be visiting if you're not!