We returned yesterday from Lefteris. It was our first visit to anywhere in Greece so we were a little apprehensive...no need! Cheryl and her daughters looked after everything in a friendly way and the Olympic Holidays rep Karen was excellent. Our 1-bedroomed flat had a bath with shower and curtain, loads of wardrobe space with hangers, a huge terrace with those stunning views over Argostoli and adequate cooking utensils (I don't cook on holiday but it was fine for breakfast and the occasional lunch) The fridge was modern with an efficient freezer compartment and the air conditioning a bargain at 10 euros for the week. The bins were emptied daily, bedlinen changed midway through our week's stay and the apartment was swept out at the same time.
The location wasn't perfect in that the steep hill made it essential to either hire a car (which we did anyway, wanting to see the island) or to take a taxi, at least for the uphill run! But the views were to die for! The main road below the terrace and the local cockerels and crickets going on all night made it a bit noisy - but it was certainly quieter than being in a flat above a resort-centre bar - and we soon got used to it. With the air-con we could close the double-glazed windows and shut out the noise anyway.
We had some good meals out, especially at Da Veronica and La Gondola. The Chinese Dragon (on the Fanari road) was good but pricey. Watch out everywhere for the 1 euro per person cover charge which is added to your bill. Most restaurants offer free bread and/or water on your table but beware the odd place that adds a charge to the bill for it(especially those on the main square in Argostoli)
All in all we felt it was good value for money and recommend Lefteris if you like a no frills base away from the hustle and bustle of the resorts.