Frankly, I didn't stay! I booked ahead, and when I arrived on the street, I spent a bit of time wandering around trying to find it - there are two street names (one for each side of the street), and a north and south numbering system. Also, there was not a sense of busy-ness that a tourist bustle provides. Somehow, from the map, I expected to be in the heart of downtown Dublin. It felt a bit off the beaten track, but on a busy street. I was travelling with another female, and didn't feel that it was safe enough and busy enough to be walking from downtown to the home after an evening of dinner/drinks/music.
My hunch is that this is a better location for families and groups travelling on the transit system. We ended up staying closer to Trinity College which was right in the heart of the social district of Dublin, and about a 28 minute walk from Christian's location. City Hall is 25 minutes from Christian's location.
There is a lovely coffee shop, and yes, it is directly across from the Guinness Tour. Still... I was a bit disappointed with the location. I think Christian could accommodate tourists who really don't know by advertising more precisely about the "minutes walk... [to] city centre".