Flat was ok for the price- probably too small compared to how it looks on the pictures.
I've been in November and was quite cold. The bathroom was more like a cellar - the little window is very old and all the air from outside comes in... If you are tall or chubby you might get trouble to get into the shower.
Takes a while to warm up the place despite is small, because there are not actual heatings but one conditioner. Warmer air from it can trigger irritations to nose/throat..at least this is what me and my friends experienced.
Lack of hot water. We were in two and we had a 6 mins max of shower each ..we could wash our hair just once..and very quickly, turning off and on the water .. was quite unique..
Do not use more than 1 high power appliance (hearing, kettle, induction cooker, hair dryer) at the same time. All in the flat is electric and there is a domestic cut-off....this as well is something you should consider if you decide to go ahead with the booking.