Lovely, we got ourselves an Italian song while enjoying the canal.
The activity itself is definitely worth 5 stars! Although the canal is fairly small, the gondoliers are very social and entertaining. The ride takes about 15 minutes, and there is an opportunity to buy photos afterwards (taken by a professional). During the ride, you can take as many photos as you like with your own camera, this is no problem. The gondolier sang us 3 songs. You can request a song if the gondolier knows it. However, please be warned that this activity only accepts PAPER TICKETS. An e-voucher is NOT ok. We basically spent an hour trying to find a place where we could print our tickets, after being told we needed paper versions of our tickets. We finally were able to print ours at the Business Center of the Venetian (you have to pay a printing fee) but it was not easy to find. So please, make sure you print your tickets beforehand!
It was a very good experience to use Klook to do bookings. Great site and I will use it more in future.