I work in sales and marketing as well!
It's great for helping me develop more social skills and I enjoy helping people find what they are looking for. I also don't have to follow a script or anything like that, which is great. I get to be genuine and honest with people which makes the entire interaction very comfortable and authentic. I'm definitely not pushy with my sales because I like to give people space to think, but I still get excellent results!
I don't think anything badly about it, except that it can be draining. Being an introvert and interacting with people all week absolutely drains me when I finally have a day off. But keeping a positive attitude and taking care of my personal needs makes it much easier.