Your table runner looks great!! You may actually find the binding on a quilt to be easier, as I have found 90 degree angles to be the easiest to go around, the corners in your runner would be harder for me personally and you did a good job!!
I used this tutorial for learning binding, if it might help you gain confidence to try a quilt!! (Though I think you're ready!!)
http://crazymomquilts.blogspot.com/2...-tutorial.html
Cheers!
Rachel