Can't particularly fault this hotel - from the moment you pull up in front of it in a water taxi, the service is impeccible. All the staff are remarkably friendly, the attention to detail is impressive and every guest is made to feel like a king.
Location is perfect, breakfast was good and the conciege was incredibly helpful.
We stayed in the Tchaikovsky suite, which had some nice touches (including original hand-written scores from Tchaikovsky on the wall from the time he was writing in this hotel). The views into the basin are just gorgeous, the room was light and airy and decor perfect.
Personally, I think it's nicer than the Danielli - the rooms are more spacious and service more friendly. If the Londra could match the Danielli's rooftop garden and reception area, it would be the pinnicle of hotels in Venice for me.