I wish I could give this 5 stars. The people, location, breakfast staff were excellent. But the noise. The Frogs Guesthouse is ALSO a trendy local bar, which is great if you don't mind loud music and talking till the early hours.
But if you're trying to get up early to see the sights (awesome location for that), the provided earplugs make it tough to sleep.
So if you're an early-to-bed, early-to-rise kind of person, this place probably isn't for you. On the other hand, if you're in Athens for a good time, this place is PERFECT!