I too only quilt part time. I agree with the others who have responded, assuming no issues with top or backing and factoring in loading time (I still pin) I can do a queen with a fairly simple panto design in about a weekend which would equate to 8 to 10 hours. I also can't stand at the longarm for much longer then a few hours before I need a break. I can usually go back to it for a few hours more but it seems I can't get much more than 5 hours max in a single day of quilting. This is for hand guided. I am thinking someone with a computer guided setup may be able to do it quicker because the computer doesn't need to take a break, but can't say for sure as I have never watched a CG longarm quilt out an entire top.