I currently use the Tandem T:slim X2 with the Dexcom G6 (switching to the G7 as soon as we can get a PA for it). I like it because I keep my blood sugars in tight range and with this pump I can micro-dose.
I started on a Medtronic pump, but their CGMs did not work well on me. So, I started using a Dexcom, which works much better, but then I had to enter my blood sugar readings into the pump all day. So, once my warranty was up, I switched to Tandem.
I also tried the Omnipod on a free trial. I found it cumbersome. It also failed a lot more than either of my other pumps. Plus, because I only use 20 units of insulin per day, I felt I was wasting too much insulin with the pod.
I've not tried the iLet, so I can't give you any info on it.

Thank you for the information.

I am on the T slim with the G7. I really like the T-slim it self correct once you have found your correct setting. It has the latest technology. The only drawback I have is the tubing. after 10 years being on these tubes it is getting to me. I'm looking for something that is either tubeless or have a shorter tube otherwise I am very happy with the t-slim and my numbers have been great. I'm able to see my numbers and gragh on my cell phone as well as on my watch so I am always aware of my reading and any corrections that I need to take. So I feel I am in control.

I have been on several different pumps including Animas, medtronic, and omnipod. I just changed to the medtronic 780g and love it. Reason for this is that it self corrects and I can set it to maintain a higher sugar when working out or refereeing soccer and it adjusts. If sugar is high, it adds insulin. If low or going down fast, it stops giving insulin. I can referee several games in a weekend, as many as 13 in a 3 day weekend, and sugars stay in range.
Only drawback is being on a tube, but that's easy to tolerate.

Hi Kelly! I used a MiniMed pump for almost ten years and had the Dexcom 6, free-style Libre for CGMs. Depending on your activity level and daily routines a pump can be very helpful. One thing I struggled with on the pump was what my DR called. "chasing my lows." meaning that I was watching my pump too closely and overcorrecting then bottoming out. I also, have a very active life and that made monitoring very important, since workouts and activity would lower my bs 8 hours post. I was able to identity trends like that, which is extremely helpful. I believe there are more superior pumps available out there that might work for you! I hope you find one that works well with your Dexcom!