Cleanliness is an issue. Dust, clutter and rarely an empty sink or hob not with leftover food on it... for days on end. Dishes, cutlery and cooking utensils will probably always need to be cleaned prior to use. You will be requested not to spend longer than 5 minutes in the shower, on multiple occasions. And can be a dark and dinghy place as blinds and curtains are regularly closed. It is right outside a tram stop which is convenient but also noisy at night, also opposite a pub, which plays live/loud music on weekends which could be a problem if looking for an early night... some earplugs will do the trick and probably why there were a few still under the bed from previous guests.
Having said this, if you are happy eating out, not looking to spend much time in the flat and just looking for a cheap bed/private room in a good location then this is a good place to stay. The location is great. Cool old style apartment but needs a good professional clean and tidy up.