Agree with both paul and Earthman. Hadn't stayed at the 4s Dublin so I did over a weekend a few months back; I think I had preconceived notion that the distance out from town would be a pain but to be honest after lunch and shopping it really is only a ten min drive out to the 4s. We went back into town for Dinner and getting a taxi back at not too late/ early an hour was easy (not sure what it might be like an hour or two later..I'm sure Earthman can tell us). And the FSPP aminities make it very good value ^.
Ohh and on another tack..i too found Thorntons a bit cold..good food and 'nice service' but... That said haven't eaten there in a while ( year maybe)