We stayed at these apartments for two weeks, the nearest supermarket is about a 10 min walk away but its a bit of a hilly hike especially in the heat (up in the 40's while we were there!)
The apartments are cleaned regularly, with plenty of storage space. Shower even has a curtain!!!!! Cooking utensils basic but we only used the electric kettle. Hire of a car is a must to get the most out of Kefelonia. The actual resort is very quiet, some good restaurants, best one we went to was the Blue Shark, think that was the name. Be warned as taxi will not take you up to the apartments its too short a journey!
We thoroughly enjoyed our stay at these apartments, the pool is fantastic and very deep, wouldn't recommend them for family with small children as the shallow end is also quite deep. The family that run the apartments are a bit miserable though and avoid thier restaurant in Katelios - it was never busy and locals didn't appear to use it either so we didn't. The best beach close by is the turtle beach especially for children as its very shallow and very sandy - car needed to get to it!
To be honest we would go back again, very quiet and very relaxing with fabulous mountain and sea views.