I'm on the Omnipod, and have been for about 3 weeks. So far so good! I was on Minimed for about 10 years, and while it served me well, am relieved about not dealing with the stress of having a $5000 piece of machinery attached at all times. As someone that is outdoors a lot, a disposable pod was ideal (they even have a recycle program) and alleviated the stress of having to be cautious about breaking it.
As far as customer service goes, for about the past year or so I haven't been as happy with Minimed- received my first call on how I was doing with the pump (again after 10 years on it), after I switched. And was pretty disappointed with them about how they dealt with their recall. I had some botched infusion sets- ruined a day swimming, and didn't know about the issue of recalls until I got a letter in the mail after I had been out of town for work. Also always having to call rather than email for help (non-urgent) with the Minimed, not so with the Omnipod. I have the email for a local representative if I am in a tight spot with supplies or need a loaner PDM. For me that was a big deal. One definite con so far is that I have hit the pod off several times when I first started on it. I could see that being an issue with a younger child. But some pluses when dealing with a child on it, you can program the bolus if you made them a lunch, so all they have to do is press that. I would imagine that is for older children, or if a school nurse it administering it that could be good.