Thank you Jenny help to book the porter when we arrived, so it's helpful as we have two heavier luggage and also in the rainy date.
But the shower room is not in our room which quite inconverience even this is private with own key, but due to have few rooms in the apartment and it easier to make noisy when you lock the door and someone was complained us for this issue which means we need to keep it quiet when go to the toilet, also lock the door for the room, so it's quite inconverience.
However, the apartment is like as photo and large in room, everything is clean and close to station, also the host is nice and she've introduced what place to go in Venice, thank you!