Terrible! don't even think about getting this apartment. Description is far from the true nature. There's no host named Martin to start with - this is a call center run by the company that owns the place. They are not responsive, don't care about you or any problem with their apartment, they are trying to maximize profits, period.
Be ready to hear every time someone enters or leaves the building, all through the night, because this is a huge complex with a heave metal door, and the apartment is 2 meters from that door.
Be ready not to sleep at all as this apartment's windows are facing only the inner asphalt yard (it's a ground floor) where all night people are drinking and smoking. Oh, and forget about opening a window unless you want to inhale cigarettes all day and night.
It's also not well maintained - water don't go down easily in the shower, and the shower door can't be closed without extreme force.
When we checked in nothing was clean or ready, and we had to call the service to fix that.
Also be ready to get tens of emails before and after your stay, without any good reason.