"Only 1 lift / elevator operational during our 4 night stay, long wait times at peak hours, lift was shared between guests and service leading to further congestion and delays.
AC system in room is supposedly controlled from an ipad in the room, I can say with confidence that the AC is controlled centrally as the ipad has no effect, the weather was sunny during our stay, the room south facing, leading to an uncomfortably hot room environment in the mid 20's degrees C.
Ipad in room is used to control the TV which was hit and miss, the presence of the older TV remote controller in the storage drawer suggest that this has been a recent transition, as with all things, test things properly before you roll them out.
I have stayed at various Citizen M's around Europe and this one in Glasgow many times, whatever is going on with the managment of Glasgow (cost saving driven?), it was a very poor show and pretty terrible stay."