We enjoyed spending six nights at Marcello’s place, with our three month old baby. The place is very clean and very well looked after. Especially the mezzanine sleeping area is very cozy although it can get a little hot up there. The heaters are very efficient which we appreciated a lot during the cold evenings of our stay. (Hence we never used the air conditioning of which there is one over the bed, so a stay in summer should not be a problem). The bed itself is unfortunately a little bit too loud whenever one moves. The apartment is well lit which compensates for the little daylight that enters as it is located on the ground floor. The shower needs some maintenance but otherwise everything worked perfectly.
Marcello is a great host and he promptly responds to any requests. He was extremely helpful with different needs we had!
With the buggy we would have preferred to stay a little closer to the historic center but that depends on your itinerary. The location is indeed an excellent compromise if you plan day trips by car outside of the city (Taormina, Aci Trezza, Etna, ...). Free parking spots were easy to find nearby, a great convenience in a city otherwise packed with cars.
Unfortunately the WiFi was often non existent. However Marcello said that that was a momentary issue.