We visit the Byzantio appartment every year. And sofar, no complaints at all!
The people are so friendly there, they are child friendly as well. Yes, sometimes you are being desired to be a little quiet, but that's througout entire Greece, because of the Siesta time, which is according to Greek traditions.
And yes, sometimes there will be electricity shutdowns, but one will probably never visit something in Greece without experiencing electrical problems.
Well, that's what I've got to say about it, and I hope that more people agree with me.