Anyone using a medtronics 670G with sensor?

Switched edo's and the new doc tested me for type 1 diabetic and it turns out i'm a type 1. She wants me to go on medtronics 670G pump with sensor. The medtronic rep got my insurance to cover it 100%. New to pumps. Injecting insulin 4 to 6 times a day for almost 2 years which really doesn't keep my blood sugars in check. I'm currently taking 76 units of Tresiba nightly then fast acting novolog when i eat or drink anything with carbs. Anything i should really know about using a pump for the first time? Esp this new style of pump that checks my blood sugars every 5 minutes and makes micro adjustment to my insulin amounts.