I have had a pump for 4 years . Went to a pump support meeting first , after taking 5 shots daily for several years . Had low blood sugar reactions , which were attributed to the mixture of insulin I was injecting . The patients at the support meeting all had glowing stories of how their lives had improved , so I took a chance and never regretted it .The difference is like night and day . I don't have to worry about the NPH insulin levels anymore as I take only Humalog with the pump . If there is a support group in your area , let them give you the first hand answers . They are not doctors or sales people . They speak from first hand experience . You may also want to view the Minimed web site .
I have only very minor irritaion , and usually toward the end of my insulin supply . Goes away when I switch infusion sites . No problems with insulin flow . Can even tie line in a knot and flow in not interrupted .
Wife was one who suggested the pump . It has greatly improved our quality of life . Don't have to calculate the NPH anymore as I now take only Humalog with the pump . Much easier to calculate using just one type of insulin .