Can I ask what issues you are having, why it isn’t working for you? And what insulin are you using? Asking as I am using omnipod with Fiasp and feeling frustrated with it. It’s not keeping me stable at all, very much a rollercoaster and corrections are slow to kick in, if at all. I never used to run so high on mdi but struggle to imagine having a tubed pump.
I have only ever used the medtronic. Unfortunately I haven't been lucky with the canulas which get bent then I end up in dka. My personal situation are present is I'm maxing out the pump and it working/ struggling to accommodate my needs. Therefore at present I have gone back on to injections. The technology is there and it does work but it's only suitable for a percentage of people.
I use Medtronic 780G and love it. It's closed loop with the cgm so I don't have to worry about adjusting basals. I just make sure I carb count as accurately as possible. I use the sure T canulas as they work best for me.