Airbnb
Very conveniently located on King's Street, with lots of cafés, shops, restaurants around. A few mins away from the waterfront.
Small room, but I found it enough for 1 person for 1 week. Clean overall, comfy bed, they provide the guest with several sets of fluffy towels, some coffee and tea. Quite equipped kitchen, it has everything you need for a short/medium stay.
I personally didn't find it loud at night, but I live in a very crowded area, so maybe I am used to the noise.
Only things I didn't like much were the fact that the toilet flush didn't work very well, water pressure is not great, and the windows tend to get stuck.
Otherwise, a nice stay!