The issue is really different for each person. I have not been on Seabourn for several years to have an opinion that is current.

Seabourn offers a smaller ship environment. There are some real positives to this and then some drawbacks.

The service can be better on a smaller ship, I think this was evidenced on the Radisson SONG OF FLOWER that got rave reviews although the actual ship was nothing. It was all about service and what a very small ship can do that a 500 - 700 passenger ship cannot. Getting into small ports and loading and unloading is so easy are two of the things that immediately come to mind. Meeting fellow cruisers is easier on a small ship, less choice, but easier. You see the same people all the time.

On the other hand you lose the bigger suites, the balconies, the variety of dining options, and just many of the amenities a ship can offer if it has more space and passengers.

The suites are a big drawback for me too. No balconies, smaller closet, I find the bathroom tight, the TV is so low down you cant see it from the bed, (I like TV - you may never watch it). I just dont like the cabins in comparison to Silversea and Regent. Important for some not for others.

The other problem unless they have changed this in some way is the casual restaurant for breakfast you have to go outside to get there. Fine if the weather is good, a pain if it is not. I was blown away many times in the morning. I loved that restaurant it was just getting there was the problem.

Seabourn or Regent either will offer you a wonderful cruise experience - just different.