The Hilton Garden Inn in Mestre in a nice hotel. The staff is very friendly, kind and helpful. It turned out the complimentary breakfast for a Hilton Diamond member was for the member ONLY and did not include my roommate! Also, a second room I reserved under my name did NOT qualify for the free comp breakfast at all (like it does in the U.S.) The buffet breakfast was good and the rooms were clean and nice. We only stayed one night so didn't have much time to formulate a good opinion but I would stay there again. There is a bus stop out front to go to Venice. NOTE: The hotel is on the mainland and you must cross a bridge to get to the major Venice spots. The taxi ride from the hotel to the bus depot was 40€ 1 way. Fairly expensive for a short visit. We rode the vaporetto for the first time. It was fun, but cost 9.50€ per person/per ride.

DO NOT STAY HERE! I travel often and I have never been treated so poorly. My family and I arrived from America and the hotel denied our reservation due to an occupancy rule that I was unaware of. (an EMAIL was sent to me prior to trip that I didn't read ). Anyways when I explained our situation, the manager was NOT willing to help, she continued to try to raise rates. Then she proceeded to charge me late-cancellation fees for both reserved rooms even though it wasn't me who cancelled. They refused our stay. The most frustrating part was her rudeness. Nobody from Hilton has acknowledged how rude this person was, nor was there any assurance of any counselling or discipline given to her from this poor experience. It's like they simply didn't care.
please please please DO NOT stay here. If one person changes their mind from this review I will feel like I at least accomplished something from this poor experience. We ended up staying in a last minute AirBnB and everything was great.

Firstly it's a 15 minute ride from the airport - €30 from the taxi rank or the bus stops outside. It is in the middle of nowhere but don't let that put you off. 2 regular buses to Venice stop outside and the hotel provides a timetable. The fare is€1.50 each way to Venice bus terminal or travel cards are available to buy at reception. We bought the 72 HR option for €45 which includes the vaporetto ( each ride €9.50) we got very good use of it going all the way to Burano!
Very clean and welcoming. Rooms ready from 2 but we got 1 at 12.45.
We book the 2 queen bed rooms and they were a nice size for a 4 night break. Tea and coffee in the room as well as a fridge and kettle.
Small shop on site charges seemed reasonable.
Pool area clean and comfortable. A food and drinks service was available and the staff were great. Nice big pool towels.
Breakfast is buffet and coffee self service. Lovely pastries.
Yes the overpass to come back over the road from the bus stop is a bit grim but
we still rated the hotel 5 because it provided everything we needed at a reasonable price. Being out of the city gave us a pool to escape to in the afternoon and air conditioning that works!
Take care when booking a taxi back to the airport - use Uber- the local company overcharged us.