We stayed in May 2018, a family with two kids (12 and 8). The appartment is very well situated, a short walk to Ortigya and with restaurants (delicous VIVO VIVO) all around. Sylvia and Marisa were very prompt to answer and to wait for us. With some luck, is possible to park on the streets aroud the block (also free of charge).
The appartment is very spacious and comfortable (beds!!) but needs some repairments (toilet splash broken and open, shower pressure, tent in the terrace, shadow on a window, table, TV) - small things which would improove ones living and definitely needs a bit more freshness / cleanness. Also, there was bad smell (maybe due to bad weather (low pressure)?
Anyway - I wrote to Marisa about this and recomended some improvements in this regard.
Hopefully she wil accept them in good faith (being from a long-time traveler expert).
Namaste!