Firstly, I like the Triumph as your profile photo. Great bike. Do you ride one?
Frankly, I'm not a big fan of any type of pump. I prefer MDI because I don't like either option stuck to my body - tubed pump or Omnipod. Also, I'm not particularly fond of relying on it all working. I properly dosed basal injection gives me much better peace of mind.
Having said that, however, I will use the Omnipod when I travel. I have to do quite a bit for work. I find that my basal requirements can vary dramatically when I'm in significantly different time zones, and the Omnipod allows quick and easy basal adjustments. Secondly, it's much more discreet than whipping out all my kit when I'm sitting in a meeting or business dinner.
I am pretty satisfied with the reliability of the Omnipod. I have one fail relatively rarely. Of course, its always at the worst possible time, :-)
I usually place it on the back of my arm. The size and design are pretty impressive. I usually forget its even there when I'm wearing one.
I agree with you - I'm not particularly fond of the disposable design. They could just as easily develop a unit that plugs into a disposable cradle/set/cannula. Maybe one day.
All the best,