A round bargello? I'm drooling! I've done several bargellos but haven't tried a round one before.
I mix hand and machine quilting all the time. However, I think before I would ever consider hand quilting a bargello, it would first have to be a quilt I plan to keep as an heirloom quilt. If you are like me and your pieces are all between a quarter inch and two and a half inches, I would suggest you machine quilt it and save yourself a lot of frustration and sore fingers. If you have make a bargello with the larger pieces, you may have more seams than a normal quilt but it should still be possible to hand quilt it. That said, my best advice is to go with what you will be happy with.
I'm with the other ladies. I can't wait to see a picture!!
~Tiffany