Tom apt. is lovely, clean, nice and very well decorated. I really enjoyed my staying in Dublin. The location is about 30 mins walking from the city centre, but u can get a bus to get there faster.
Rathmines is a quite place and I suggest to visit the surrounding area as you may have some nice surprises: lovely and quite restaurants, pubs, roads, churches....
If you visit Dublin, you may decide to stay at Tom's studios, it's worthy!