Great location, within easy walking distance of all sights, a huge shopping centre with supermarket, and dozens of restaurants, pubs, etc. The main tourist area is just across the river, and the side where the apartment is is so much nicer than that area. Trams and buses (including the airport bus) are within metres.
The room is reasonably sized, although a bit of a squeeze once luggage is out. It has a lovely window that looks out onto a private courtyard area with a big tree, but the seagulls living there were phenomenally loud – I sleep with industrial earplugs and don't even wake in hostels, but these birds broke through them and never stopped squawking, even at night. The bed is full of springs and super uncomfortable, as are the lumpy, flat pillows.
Wifi is terrible – it's a hotspot off an old iPhone, and the fastest it got to was 1 – 3 Mbps. I often struggled to open websites and send emails, couldn't make video calls, and wasn't able to back up to the cloud, so had to use a SIM card instead.
You can use the bathroom and kitchen, both of which are reasonably clean but full of stuff (think messy hostel). The shower (in a bathtub) is hot and strong. The fridge and kitchen stuff felt a touch dirty. You're not really welcome in the living room. The closest laundromat is 1km (return) away and costs €10-14. I stayed in July and it was insanely hot, even at night and even with the window open, and a fan was desperately needed.
I don't usually stay in shared spaces, and this experience unfortunately reminded me why. Karla and her husband Eduardo are both nice, friendly people, but they're quite involved (have to be present for check-in and check-out, don't really leave the house) and both made comments/asked questions about how I chose to spend my time, which made me quite uncomfortable. In two days, I went on a walking tour, visited a museum, did a heap of shopping, and ate out for five meals, but still got the distinct sense that they wished I were out more. I work remotely, and also feel that once I've paid for a room, I should be able to use it how I please – I'm a quiet, respectful guest, so my choosing to be in the room when I want or need shouldn't be an issue.
Check-out was pretty stressful – I left at the specified time, but Karla needed to get to work so it was a pretty rushed and amped process.
There's a lift in the building, so heavy luggage isn't an issue. The building has a lot of safety features in place, and the room has a lock on it. There is a big sign at the building entrance saying Airbnb isn't allowed and guests won't be covered by insurance in case of stuff like fires.
Dublin is obviously hard to find rooms in at a reasonable price, so it's a good option in that sense, despite being very expensive for what it is.