We had the top level room overlooking the canal and its amazing.
Room is spacious and relatively clean. Its kind of old french type decor, very marie antoinette type. Overall happy my one suggestion is to put in a shower screen as water goes everywhere when taking a shower over bath.
And also, down the road near the bridge there is a Trattoria called Pontini, recommended by the hotel and its a very very good Trattoria, go eat there at least once.