Highly recommended.
We took the apartment for the month of February and thus got a discounted rate.
We were on a budget so we weren't eating out very often; rather, we cooked every day. The kitchen was perfectly adequate for the purpose, the rooms clean and all cleaning utensils and products were provided - so we didn't have to rush out and buy stuff like washing up liquid etc.
Possibly the thing we liked best was the location, just inside the restricted traffic area: as good as you can get in Ortygia. The car park was a couple of minutes walk away so no lugging suitcases through narrow alleyways. By prior arrangement Santina booked us in for the month for the carpark and we reimbursed her when we arrived. This saved a load of hassle and expense.
The local street market was even closer and we were there every morning for a coffee at Fratelli Bourgio (say ciao to Dani from us if you go) before buying our day's food off the stalls.
Tip: the street market is six days a week, closed on Sundays. Instead there is a farmer's market in the old Market Square at the top of the street. There we found a guy selling cheap wine in one litre or five litre plastic bottles with a cheap black and white label slapped on. The price looked good but there was no way of assessing the quality, so I risked a litre bottle for €2.00. The following week I was back buying five litre bottles, at €9.00 each even better value. At that money I would nearly have drunk Albanian antifreeze, but this was excellent. Choice of two: Syrah or Nero da Avola, I recommend the latter. Don't miss out.