Paul is a nice guy, we had brief chat when I arrived.
I spent one night there...so too short to make a full precise review, but my overall experience was great.
The house is in Dublin 5, near the dart and buses (less than 5 min walk). It takes about 20 min to reach the city center.
There area is very quite, so no traffic or noise.
The house is spotless, very clean and Paul is very strict on that.
He lives there and is renting the three remaining rooms.
Honestly, I did't even notice there were other guests there.