The place: very convenient nearby city centre, around 7-10min walk to several lines of train stations, easy access to major sightseeing places in 20-30min by train; no lift in the building and the flat is on 1/f; smoking smell in flat which maybe concern for someone; supermarket nearby but be aware that almost nothing opens on Sunday in town.
Check-in: David is helpful to arrange check in at appointed time; previously agreed to allow check in at 12noon before I booked the place, but when the day comes it was changed to "be arranged only after 1pm".