The Smithfield penthouse is fantastic. Sparkly clean and lovely. City views for days. Perfect for walking everywhere. We had a great couple of days in Dublin and never needed our car. The location is directly across from the old Jameson distillery, and I recommend a tour there—our whole family loved it. There is a supermarket just below and restaurants and bars all around. Temple Bar area is nearby and very walkable.
It took a little figuring out for the parking and which entrance to use, but once we dialed that in, all was perfect. (A couple notes: parking is on level -3, and the entrance to use for the elevator & stairs is the Thundercat Alley entrance.)
We'd love to be back someday!