Bruna's place in Marghera (not Mestre) is well furnished and extremely clean. The room does not have an AC, but does have a ceiling fan, which keeps the room at a comfortable temperature. It has a private restroom that is large, well kept, and has a constant stream of hot water. The bathroom is not connected to the bedroom, but is right across the hall. There is also a small living area with a few chairs and a small table. The breakfast is a basic continental breakfast that probably will not hold you over until lunch. There were boxed juices, packaged pastries, instant coffee and sparkling water in the room on arrival. Thankfully there was a small refrigerator so we could store our own food and drinks.
The host was very flexible with our arrival time, which was much appreciated.
The apartment is about 20 minutes from Venice via bus 6 or 6/ which picks up at San Antonio bus stop in Marghera. This is a 5 minute walk from the apartment. You can also get there via public transit from Marco Polo airport (VCE) in about 50 minutes by taking the 5 bus to Piazzale Roma and then jumping on either the 6 or 6/ bus. These buses run frequently and 24 hours.
The neighborhood is residential with not much food around. We also found the streets a little confusing. I would recommend getting a map to avoid getting lost!