We booked Federicas apartment for four days. The check-in was alright - it's only at 3pm, if you arrive before that, like us, you can store your luggage at a shop at Piazzale Roma next to the train station, which is a 20 min walk from the apartment, which can be a bit exhausting with the luggage but wasn't a real problem.
The apartment looks absolutely stunning and exactly like on the fotos. The equipment is not as described, however. The oven is broken, there is no shampoo as described but only 5 times watered-down soap, and at our stay, the heating wasn't working. In late October, this meant we were absolutely freezing in the apartment. Federica didn't seem to take this seriously (she told us to wait and hope for it to get warmer, then stopped responding), until we contacted Airbnb. After 3 days of freezing (it was actually warmer outside than inside the apartment), Airbnb finally gave us a 50% refund, and we booked a hotel for the last night.
Again, the apartment is beautiful and very well located. It seems though like it is run with as little effort as possible, which I guess is not uncommon, especially in Venice. In comparison to other stays in Venice though, this was by far the most expensive, and by far the worst.