We spent three nights in Rethimno. The place was nice for spending the night because it's tidy, quiet and still really well located. I think, for us, the apartment wouldn't be cosy and clean enough for a longer stay (especially the kitchen smelled a little mouldy), but given the fact that Eleni and her husband seem to run a few apartments, they were extremely considerate and friendly.
So, if you're just looking for a decent stay for exploring the town, we can recommend this place!