The aggregate rating of MSC Seaside is build on scorse given by the following portals:
| Aug / 24 | Sep / 24 | Oct / 24 | ||
| cruisetimetables.com | 3.0 / 72 | 3.7 / 72 | 3.7 / 73 | |
| seascanner.com | 7.5 / 176 | 7.5 / 166 | 7.5 / 160 | |
| cruisemapper.com | 4.0 / 1 | 4.0 / 1 | / | |
| cruiseline.com | 4.0 / 1023 | 4.0 / 1023 | 4.0 / 1023 | |
| cleancruising.com.au | 4.1 / 7 | 4.1 / 7 | 4.1 / 7 | |
| cruisedirect.com | 4.4 / 70 | 4.4 / 70 | 4.4 / 70 |
MSC Seaside is also ranked in: