I only spent a night here, but it was a fantastic stay!
Kelster was very welcoming and friendly, I felt instantly comfortable. I had the whole lower floor to myself for the night, with access to a private bathroom, and my room also had an outdoor area to relax on.
The room was very spacious, sparkling clean, with a lovely big bed. The area is great too, with off street parking and no city noise at night.
A definite hidden gem, can't recommend enough and would definitely come again if I'm back in Wellington.