The Hotel Rex, Thessaloníki, Greece might be a good place to stay after the current renovations are finished. But as of a week ago it was like staying in a building site. A new lift is being installed, but in the interim you have to walk up four flights of stairs to your room. New soundproof double glazed windows are being installed, but while that is happening you have to step over builders tools, and listen to hammer drills.
Rooms have air conditioning, but I found the filter in mine was blocked with several millimeters of dust and carpet fluff. There seemed to be more pile in the filter than on the grimy unclean carpet on the floor. I would guess the management have decided not to clean the carpets until the building work is finished, even if the cleaner could be made to carry their equipment up the stairs.
The hotel did have some good points: most notably, very helpful staff. It is very close to the railway station (perhaps a bit too close). It had a very good free cyber cafe, apart from the air conditioner set to 29 degrees and the flat batteries in the cordless keyboard and mouse. Who in their right mind installs a cordless keyboard and mouse in a cyber cafe?
The hotel will be even better placed when Thessaloníki finishes the Thessaloníki Metro, running past the door. But that could be decades away.