Hi Nicola,
I posted some stuff on earlier. Arillas is a pretty quiet place, that's why a lot of pepole come back year after year! There's a few bars and plenty of places to eat, but it's really a place to chill out, go for walks. laze by the beach. There are boat trips that leave from the 'harbour' /pier.
It's quite isolated, so if you want to explore you'll need a car. There is a daily bus trip to Corfu town for your shopping etc.
Depends what you want, but it's really a place to relax and enjoy good food, wine and conversation, and rthe chirruping of the cicadas!
Personally we love it!
Hope this helps.
John