There is another review that says the office is not in this location. That used to be true until I edited the location. The office was in the same building, just down the road a little bit. You can't really see it from the center of Piazzale Roma because it is behind a little wall and lower in elevation.
Anyway, I was satisfied with my experience. My family and I were vacationing in Venice and decided to rent a car to drive to the Dolomites. The price was expensive because it's located at Venice port. If you want cheap, you need to rent from the airport but you have to take a bus to get there and back. Also unlimited kilometers was not included in the price and I had to pay an extra 80 euro for that. The staff member tried to help me get a lower price but there was nothing she could do. The car was clean and in good condition though.