Well, do you have any reason to use Unity?
If you do, please share with me, because I want to learn Unity but I've been developing games in renpy, I found it easier.
Maybe if you can understand my point this might apply to you.
I'm an IT student at a local university, we learned c# for 3 semester. So when I look at these type of unity assets and I read the description as I did in your case too: I looked at it and I found this kind of unnecessary. This does not give you any feature that is hard to program by yourself. None actually.
If you have any reason to use unity instead of etc, you might know coding for a basic level right? If that's so why don't you make it yourself? You'll get better at coding and not using any type of library (also C# does not need any external librarys, a very well defined language).
If you know coding, you can just make it yourself. That's it.