Great service in Montenegro!
In my opinion, traveling to Bosnia and Herzegovina from Montenegro is one of the best options for a short trip you could choose. Perhaps, you have seen reviews saying that Bosnia is boring and the tours are unimaginative. I should say that I had also once believed this. I believe this only to be the case when you go there on a bus tour or a 1-day stop.
I will try to debunk the myth and make your trip here one of the most memorable of your visit.