You are so welcome:) My son was resistant to the back of his waist too, but the CDE really encouraged (nicely pushed) it and we have put it there ever since. If your daughter is scared of the insertion, you may want to talk with your Endo about numbing cream. It numbs the site and the kids don't feel the insertion. My little guy is more willing to changes sets/sensors this way.
In terms of the Medtronic pump, we were originally concerned about the tubing on a pump as well, but after almost a year, we have had NO issues with it. Even at school, the kids seem to really respect him and his devices. And, on occasion when he has dropped it, it has not dislodged his set. The pump gives the kids so much more flexibility in terms of their eating and corrections can be given sooner. Since my son has been wearing his CGM and we have the pump we are able to see trends/rises/falls and respond to them quite easily and swiftly. The pump/CGM combination has given us the most control and window into his world.
Good luck and you are welcome to ask questions when ever you have them and we will all try and support you:)