Located near to Clonskeagh, and not too far from the UCD, the Ashtons is a good alternative for a nice work lunch, or a beer after the office hours.
During lunch time there is a pretty large choice available, good quality food for a reasonable price.
Inside it's the classic Irish pub, a bite more elegant than the average, with a small room downstairs if you need to book a place for a large group.
In that area is definitely the best choice for a quality lunch and a good pint of Guiness
It's a nice bar but it takes about 20 minutes to get there. It's very quiet and it's a restaurant too with some good courses. You should go there for a relaxing night or for a dinner. As I said before, it's just a little bit too far from the town.