We're going on the Westerdam around the Baltic later this month. Have only been on the old Westerdam to Alaska some years back and it was fine, but have enjoyed Princess and evern NCL (in spite of some negative comments we have read). Comments please on the ship, shore excursions, and "formal" wear to take.
My wife and I just returned a few weeks ago from a Baltic Cruise on the Westerdam.
We liked it very much. I will email you with a more detailed review.