The good:
The neighborhood - close to transportation, quiet, near some small shops and a great park!
The price.
The Bad:
Ventilation - Musty smell in the hallway/stairwell leading to the flat. The smell doesn't follow into the flat luckily, but there is a small patch of mold in the bathroom because the humid air has no quick way of escaping. Because of this the mat and towels would never completely dry.
Small things - a floor board was loose, the microwave wasn't near an outlet (had to pick it up and move it closer to one in order to use it). Some shoddy work here and there like the bathroom window which hasn't been painted (and doesn't easily open).
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If you're looking to save a few pounds and only there for a day or two it's a good bet, but think I'll pay a little more in the future for my comfort.