A LS or DS bounty hunter is really subjective in my opinion, A class or a profession that is sol purpose is hunting others dead or alive for credits, fame and glory isn't all that moral to begin with.
I think the Bounty hunter story is very good and I loved every moment of it, I liked it even more the the Trooper story line, the 12x XP boost for story missions helped me a lot in enjoying the story and not having anything to do with the empire which is something I hated, not because of the empire but being affiliated with any side of the Galactic war or being involved in galactic politics in general, I like being a neutral Bounty hunter and I like to have flexible morals where I can commit light and dark side acts which ever gets me as closer to my prey ad fulfilling my contract.
I get to run around the universe hunting people by different means, trapping, tracking and drawing them out of hiding, deception etc its very good. you even get to suffer the consequence of being soft in some of your decisions and letting some bystanders go instead of killing them only to have them ambushing you directly or indirectly later on.
Keep in mind this class is based on Starwars Bounty hunters and I think its spot on in that regards, of all the bounty hunters we know from the starwars universe, has any if them had an issue with killing people?