My wife and I cruise for the destinations - 'sea days' are an accepted necessary part to travel between some ports, but in general they are not to our liking.
So, having worked for 40 years for a Scandinavian company and travelled around Europe on their behalf, it's not hard to guess that our main, I would go so far as to say only, reason for choosing this itinerary was the 2 day visit to St Petersburg. This was cancelled, as already reported by others, due to weather conditions not being appropriate for a vessel such as Silhouette.
Very disappointing, quite unacceptable (in particular the response, or lack of, from Celebrity).
Cabin smaller than expected. Cabin service was 'OK'; usually carried out to fit in with our morning and evening dining habits.
Missed touches such as the 'towel sculptures' that other lines seem to do (perhaps these are old-hat now, but they seemed to add a personal connection to the steward).
Excellent embarkation
Toured independently, taking in Old Town, Vasa & Abba Museums.
Did use the ship's shuttle service to reach city centre. Very good