I didn't got to meet Alex but I met his lovely sister who was kind & provided us all the information. Alex also give us a free breakfast everyday. The place was quiet and beautiful. Equipped with kitchen utensils and have all u needed like as home.
Also the location is 5mins walk to Rialto bridge and near to San Marco too. I had fun and happy to stay at Alex's place, wont regret and will come again to Venice and stay again at his place.