Hi there, we made the mistake of taking a trip on the Ryndam whilst she was in the UK, and have to say that we were thoroughly disappointed with the whole experience. Unfortunately from your message it doesn't appear that things have improved since she moved to the Caribbean.
It may be worth looking at the larger or newer ships in their fleet.
Last: P&O Oceana December 2016
Next: NCL Jade August 2017
Then: P&O Ventura December 2017
Golden, Grand(2), Caribbean, Royal, Sea(4+1 aborted)
Adonia(4+2), Arcadia, Artemis(2), Aurora(5), Azura(2), Britannia, Oceana(4), Oriana(12), Ventura(2), Victoria(5)
QM2(2), QE2(9), QV(7), QE, Caronia(2),
Oceania Nautica, Minerva, Minerva II, Fred.Olsen(8), NCL Jade, =X= Eclipse, HAL Ryndam, Aza.Journey, CMV Magellan