Q: Is this a mod of excellent quality?
A: It seems fine! It is not going to work for any and all entities from all mods, but I will look into expanding its functionality.

Q: How do I find entity IDs?
A: You can find both type and name ID on the wiki. As for entities added by mods, you can at least find the name ID by pressing F4 in-game, selecting the option "show-debug-info-in-tooltips", and then hovering the mouse over it to see its info.