the bike looks great and seems "right sized" for you...big enough to enjoy for at least several years (or forever, really), but still small enough to easily manage around town without much fuss...there's nothing worse than brand new riders getting large powerful bikes for their first rides...they usually drop them, kill themselves, or both...you're being smart about it.
you took the course so you should know many of the basics, but just remember, assume no one else sees you, and don't get "lost" in the traffic (try to ride a bit faster or slower than traffic so you don't "sit" in someone's blind spot for longer than a few seconds)...you've got a really good first bike, so zipping out the way is easy enough, and it's also an agile bike so quick actions are possible (vs say, a cruiser which isn't as nimble).
and i'll say it again, that bike looks awesome...very good choice Roger.