We decided for Aqua Palace because of the combination of price (€ 161,00/night via Trivago), Tripadvisor rating and location.
At e 161.00/night in July, including breakfast & Wi-Fi internet there's nothing to complain about. It's a solid 4 star hotel. Of course our room was small (as expected because I've booked the cheapest one) but when in Venice anyway nobody will stay in the room for long. The room was well equipped, the bathroom (marble) very cosy. Staff, especially reception is super-friendly but not fake-friendly.
Best is the location, right in the middle of Rialto Bridge & S. Marco square. If you do have a map you'll find the hotel any time.
Why 4 points and not 5? When I would have paid full price I would expect a slightly bigger room, not just one pillow/person and a better blanket.
Would I stay at Aqua Palace again? At the rate I got: YES!!!
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.