My daughter has just been given the new Dash. Can anyone tell me if they use it and how it compares to the old PDM style (Which she currently uses) Really want to know what the main benefits are. Im concerned about how often she will have to charge it compared to the old PDM which only needed batteries changing several months, and the fact that you can’t use it to test blood which we liked as a back up if her libre stopped working or came off. Thank you