This allowed, among other things, for a larger number of cabins with windows (today such promenades are found in the most recent ships of Royal Caribbean and Color Line).

This allowed Silja to make more money from her onboard slot machines and casino, due to legislation differences between Åland and the Finnish mainland.

The Silja Serenade was somewhat ill-suited for this route; her accommodations were not designed for daytime crossings and reportedly she steered poorly in the narrow archipelagoes of Stockholm, Åland and Turku.

In early 2006, just prior to the sale of Silja Line to Tallink, Serenade and her sister had their interiors extensively rebuilt at Turku Repair Yard, Naantali.

In 2020, services were disrupted by the COVID-19 pandemic, and in June, the vessel began operating a temporary ferry route between Helsinki and Riga, departing each capital city on alternate days.