I have been there several times, due to obvious reasons (Bosnia being a country that borders Croatia and cultural/economic/ethnical reason).
The landscape is beautiful, especially the coast. Pretty expensive though, they are not that serviceminded either.
When it comes to their opinion of Muslims, there are those who hate Muslims and those who dont. As long as you respect the host, you wont have any problems.
I am in Bosnia right now. A lot of Arabs come here for vacation, I guess they are fascinated with how green and rich with water Bosnia is. Like Jannah... I see them all the time on snapchat map.
There is now also a new refugee route through Bosnia. Not really happy about that.