Miles was all for being top of the class, so he definitely worked hard and tried to be a teacher's pet with a sidedish of cheeky, so I doubt Remus had much reason to complain.
O HAI CHARLIE LET'S BE BFFS AND HAVE ADVENTURES AND STUFF.
*ahem* Sorry, the awesomeness of their PBs' bromance got in the way. Anyway, Miles will definitely know of Charlie. Besides the Quidditch links, he ways it's hard not to notice a Weasley.
Hah, I'm curious too now. Miles will possibly try to organize a welcome for him. We'll see how it goes and how much fun said welcome will be.
I'm up for that!
They'll definitely know each other from Quidditch, if nothing else.