a little comparison.
Yafaray:

Indigo:

The original scene and Yafray render is from lakcaj.
I tried to mimic all the original materials, apart from the floor which could have used a little higher exponent it's looking alright I think. The lighting of the original scene was accomplished bei two large area lights on the ceiling and on the wall in the back off-camera, small area lights in the shelve. I removed those area lights (duh) and just used mesh emitters where the spots on the ceiling and in the shelve were. The TV screen texture has a 10 gain, to give it a little fake-emission, the two boxes are uv textured cubes, so I couldn't do anything about them
Both images rendered for ~4 hours. I had a little noise removal done, thus the floor texture on the latter picture is a little washed out. The ceiling lamps look weirdly pixelated, any ideas about that?
edit ps:
yes, it's yafaray (thanks chronoh), the actively maintained rewrite of the yafray core