Some thoughts…
Positives:
1. It is tiny, a small ‘footprint’ and low profile is good for the obvious reasons but also means it is easier to find a fresh site (by way of comparison, the pump is a little oblong thing, the long side is about the same as the short side of a omnipod);
2. I like the redundancy offered by being able to use the PDM (which is also tiny) or phone (not at same time/ same pump);
3. Being able to control the pump from my phone (one less thing to carry), really like this;
4. The battery is in the disposable bit of the patch so you don't need to carry around spare batteries / worry about charging it etc.
5. Generally there is a lot less stuff to carry about (not much more volume vis-a-vis MDI)
6. Really good customer care and support
7. Easy to use
8. All the usual benefits of a pump eg I use temp basal, suspend, different bolus delivery profiles.
Negatives:
7. I'm a bit sensitive to the adhesive (now stick it to a patch of Hypafix tape with Rock tape over the top)
8. I had a duff box (the battery depleted before the end of the pump) but because the customer care is so good it didn't really matter - I had a replacement box within a couple of days.
9. Like all d-tech there's a lack of data integration so I need to copy data from the Libre into the PDM/ app
10. The software (web and mobile) could do with a bit of TLC - it is fine, does what it needs to do but just a bit rough around the edges and the reports/ data viz aren't ideal
Other things of note
1. Medtrum also sell a CGM which does integrate with the pump - also allows for auto suspend and hybrid closed loop (being trailed at the moment). I’ve no experience of this but can see it all sat there in the interface!
2. uses a steel cannula - hasn’t caused me any problems (doesn’t hurt, no reaction etc.)
I would certainly recommend.
Hope that’s of some help.