Dons dome is in a beautiful location, only a 20 minute drive to enniskerry where there is a lot of placed to eat, get good coffee and anything you need
the dome is a bit chilly these winter/spring months so bring pyjamas or extra layers to sleep in it you don't like the cold at all
You will need a car for this as it is quite isolated, but the view is lovely, the WiFi worked well for us and the place was very comfortable and private
if you plan on cooking there, come prepared and be patient, the kitchen unit is not that modern but fit for purpose, as I said, lots of places to get food in enniskerry
another positive, lots of walks/hikes and scenery around, and if you are willing to drive, greystones is only 25-30 minutes away