First, we have been on three MSC cruises so far. This is the second time on Seaside. Originally tried MSC due to the price and have found that it offers most everything that lines like Carnival and Royal Caribbean offer at a much better price.
Did Seaside for a second time as I felt that it would be a very good, fun cruise for my boys, 13 and 15, to do for there first cruise. It was. They loved it. Had a lot for them to do on board, they did go to the teen club a few times but found that the kids there had more interest in things that my boys were not interested in so that was not a big sell for them. But a lot of kids were there. The ship itself was full of kids of all ages. It is truely a family cruise.
Food:
Nice size cabin for a ship. Balcony is nice and large and has a sliding door not a hinges door. Much nicer than others with hinged doors. Shower is glass not a curtain. So nice in that respect as well.