SolSeraph’s definitely a successful copycat that lacks originality. If you haven’t heard of or played ActRaiser, SolSeraph will seem quite unique. It’s an example of the finished product being greater than the sum of its parts: a good action platformer combined with a good RTS that makes for a very good package.
In the end, this is the best version available of a great game, so if you haven’t played it, and want the most up-to-date/complete version, this is the one for you. Valkyria Chronicles Remastered is highly recommended for fans of Tactical RPGs, JRPGs, or games that uniquely blend gameplay elements to create original gaming experiences.
The new game is full of fantastic modern electronic tracks. Sadly there are no big licensed artists to be found, but there are plenty of Harmonix favorites like Freezepop and Symbion Project. My favorite tracks include Perfect Brain, Dalatecht, and Crystal.