My flight was due to land at 21:00, but was delayed so I reached the hotel out of hours. I had been provided with details to check in myself but none of them worked. I was left outside, where I could see a key box but none of the emergency numbers were answered. at 02:00 I had to walk Venice looking for an alternative hotel, which I found through luck.
I paid more for my first night and though the hotel agreed to refund my first night, I am out of pocket.
Once checked in the next day, the hotel was great, very easy and convenient and staff were great. It was just the really poor check in that was a dissapointment. If you are checking in in standard hours, this is a good option. I would need a lot of reassurance regarding checking in after 10pm.