The apartment is everything that was promised. Very lovely and pretty with good location in the middle of everything. We didin't have any problems at all.
The building had a bit of mold (mostly in the hallways, I can smell it very easily and get small reaction to it) but it didn't bother that much because we could keep the air fresh by opening the glass door of juliette balcony.
Overall the experience was lovely, everything we were expecting and even more. I highly recommend staying if you are looking for a modern place in the center of Brighton with an affordable price.