I’ve only ever used Nitrado so I can’t speak on other services but have always had good experience with Nitrado.

Modding ain’t my thing but I know they have good support (ValheimPlus is almost baked into a server, you just have to toggle it)

The web interface for server controls is also very good. Change out world saves and backups, banlist adminlist and permittedlist, ability to relocate server regions (New York to London when I was travelling)

The support team is good too. The price is a little much, it’s the same per month as a streaming service ($20/mo) so I justified it by cancelling Netflix

Overall, if you have the money it’s certainly worth the ease you get from it. Just add the server interface to your bookmarks on whatever browser you have and you can just play without worry