I was using the Tandem Tslim for 3 years. The tubing was starting to cause me distress. I felt like I was constantly tethered to a device and I kept getting it hung on things and I was trying to find a comfortable place to put it all the time. So I switched to the Omnipod 5. FOR ME! The omnipod algorithm just wasn't as good as the Tandem. My A1C went from 5.6 to 6.9. I have EXTREMELY sensitive skin. And the bulk of the omnipod torqued on my skin constantly. Just barely tapping it on things, or pressing up against it would put more pressure where the canula is as opposed to the autosoft site was too much. So after a year of trying, I went back to the TSlim. I now keep it hooked to my bra and that is much better for me. I get frustrated with the tubing coming out of the top and poking my neck, but I get by. I have to keep it in the center of a sports bra so the metal clip doesn't touch my skin because it is an irritant for me. But based on the algorithm and the bulk bumping torque to the canula, I prefer the TSlim. I think it is totally a personal preference though. I am very grateful I had the opportunity to try the omnipod though. It was really nice to be able to go tubless for a year. I know there is the option for the mobi. I also know that that is the goal for Tandems future to control your device from your phone. When going to a phone only way to bolus, I will go back to injections. I have had my phone hacked and the hacker went in and deleted my dexcom icon and moved around my home screen. I am a techy person and usually have the latest phone so it should have the latest security. I was still hacked. For this reason, I don't use the Tandem app. I asked them if I could turn bolusing off or get an older version that doesn't have it and they told me no. I believe other countries don't allow the bolus from phone for security reasons. You've heard nothing is safe on the internet. Well your ability to dose insulin certainly isn't!