for an inexpensive gun they are the way to go, but only if they fit you. I had a CZ woodcock deluxe, and it shot great, it got heavy, but was a decent gun. I traded it in for my Cortona.
CZ also makes a great Upland Ultralite. That gun is only 6 lbs and is a great gun to carry all day thru the woods. As far as the Canvasback, that would also be a good gun to use but slightly heavier.