It all depends on what floats your boat.
New, big, glitzy, they are not, that's for sure. They don't have many balconies, and their short supply pushes up the prices.
That said, having just spent 35 days on the Volendam, I am reminded of how much I enjoy being on that class of ship. My wife and I enjoy the unique itineraries that HAL offers...and these have often been on the wee boats.
Having a proper walking deck is great, unlike the maze that is on the likes of the K-dam.
The wee community that grows among the lanai people, and of course, that ability to go to places that don't allow big ships.
When HAL does finally get rid of these 2 ships, I'm not sure that we will hang around. Maybe look to Azamara or the like...
So, it depends on what your priorities are.......