Mairead is a lovely host, giving a warm welcome with assurances of her total availability for help or advice. I needed neither, being Dublin born and bred and very familiar with the area.
Mairead has very creatively and successfully made use of limited space for a charming guest room. One enters, from a small parking courtyard, down a few steps to the private sub-basement of her lovely little house which faces a small garden/park in a quiet residential area. The space has truly all you would need to sleep (in a very comfortable double bed) to store luggage, to unpack (wardrobe, chest of drawers, etc), to prepare an uncomplicated meal and to bathe in full bathroom.
My only concern was the impractical installation of a (fold-down) table and bar-stool chairs against the wall outside the kitchenette. The chairs are delightful, prettily cushioned BUT the height of the table makes it almost unusable - save when standing up. Mairead has thoughtfully supplied a tray, thus I enjoyed taking my cup(s!) of tea, suitably clothed for the somewhat chilly mornings, on the lovely little terrace outside the room.
Final note for those who require (as I do) ventilation in the sleeping area: the bathroom window which is basically at the end of a U-turn (bedroom-through kitchenette to bathroom) can be left open, as Mairead advised; or the entry door which leads only onto the "private" terrace but is basically open to the UNSEEN street. I chose the latter.
All that said: you would be perfectly happy and safe and comfortable in Mairead's lovely guest room.