We booked via Olympic, big mistake, the flight was 3 hours late, the coach transfer (no aircon) took 3 hours, with a trip via Lassi and Lourdas resorts to drop/collect other travelers.
The Hara studios are nice, with a small kitchen, and a slightly under stocked utensil array - 1 frying pan, 1 casserole pot, various knives/forks and a few cups/plates.
The quantity of feral cats is too high, they are scraggy items, and happy to attack with claws should food be offered, I'm not sure they are free of fleas either.
The rooms have aircon, Hara herself seems reluctant to hand over the controls, even though 75 euros in cash was to be paid, other arrivals had to wait 2 days to get the aircon, in 40 degree heat it is required!
Also the pool seems to get many dead flies/wasps on the bottom, maybe if the pumps ran all day instead of for a few hours this wouldn't happen.
Take a torch, the road route to the village is busy, and at night unlit, as is the track to the 4 brothers taverna/nemesis bar/mythos pool area.
You will be self-catering at the Hara Studios, but more likely eating at tavernas every night, allow 20 euros per person per meal, that soon adds up, there are no fast food/snack outlets.
There are no ATM machines in Katelios, the one in Skala works part-time, though 1 supermarket in Katelios will do you cash off your visa card, for a 5% charge.
There is no chemist/pharmacy either, and the Skala chemist can be shut with no reason.
We didn't hire a car, maybe we should have, but if its a chill-out holiday I don't wish to dodge and swerve with all the Hellenic powermax brigade and lunatic bus drivers.
Would we go again? No, we would rather visit Zante where we had a much better holiday before, at a better price and paid less through the stay on extras, but I suppose Kefalonia has other resorts too.