Anyone have experience with a pump?

Any other women out here have experience with a nausea pump placed before? I have HG and we are trying one last option before going with a pump. I am 24 weeks tomorrow and have had constant issues with my health. Lots of hospital visits, IV fluids, shots, meds, the works. I guess I'm just wondering what it's like or what I should expect. Thanks for any advice or stories you have to share. :)