The canvas will wear a little as it rubs on your wrist during use, it should soften up considerably. That said, if you're "unsure" of the band then change it. I'm a huge believer that when "you don't know about something" you really "know you're not that into it/her/him."
You mentioned the strap in two separate posts already so its definitely on your mind! If you want to change it change it up.
I think that watch would look fantastic with a black stainless steal or a black ceramic strap, but I'm partial to non fabrics as I damn near never take my watch off.