| Well I am an MDI user, on Novorapid (fast acting) and Lantus (long term). “Issues” is quite a broad term when talking about diabetes and MDI. I have "issues" from injection sites to finger pricking to simply trying to control my bg level and A1c. I can't help you with pumping as I’ve not used one, although I believe the basic advantages are that you get a steady stream of insulin that matches your body better than Lantus can. Despite Lantus supposedly having a flat absorption rate many people claim it peaks and runs out before its time to inject the next dose. | 
