Your quilt looks great but you will find with each quilt that your muscle memory is better and better and so will be your control. Even after one week you will see a difference. I begged and borrowed quilt tops that others had done but were never going to finish because they were so unappreciated. By the time I got done with them they were loved. It is amazing what quilting does for a quilt top.
I found I was four times faster than on my regular machine. Now with three years experience and 320 quilts done, I am twice as fast as that. Better yet, I just smile when I get to go play on my machine.
Congrats on your machine. May you enjoy every minute and may your creativity show through.