We were on the Oosterdam twice this year: a 2 week Caribbean with my elderly mom, and then my husband and I for a 14 day European cruise. We were happy both times. Love the layout of the ship and that it has an intimate well laid out feel to it, food was good especially in the Canaletto. Service was excellent both times, especially the bar staff. The only thing I was disappointed in was the dual piano players, HAL seems to consistently find people who can't sing. And it could be such a fun venue.
many cabins and ship areas have been redone.
I agree, some things have changed on HAL, and I miss the bigger library, would like band before dinner in the Ocean Bar, but over all still like the wonderful service and small ship feel of the HAL ships and the oosterdam is well laid out. We had a verandah room both times and loved it, loved the spa too!