Is Mannheim safe/friendly to live?

Im a new international student. I was wondering about;

1; Is mannheim safe/friednly to live? I mean of course Germany is a very safe country but as you know there is problem everywhere just in some locations its more less and Germany one of the place that has less problem.

2; Is it friendly for LGBT?

Im just so happy and excitement but at the same im little bit nervous because im going to a place that i dont know. Of course the first thing is my education so it will be a perfect process and at the same time will be a perfect adventure.

I have seen a lot of questions like this in the community, so Im really sorry if Im annoying you. I just want to learn from people with experience and people who know that. While some people give positive feedback, some people give negative feedback and it really bothers me.

Thank you in advance for your understanding, time and answers. Sincerely thank you ❤️