While most of my quilts I piece on the machine, I always have one or two quilts going that I piece and quilt entirely by hand. We travel a lot with our 5th wheel camper and I can sew while riding in the truck, or sitting outside at the campground. I have found the I love the process of hand sewing because of the accuracy and the calming effect of it. I still usually have a sewing machine in the camper also, depending on what I am working on at the time, but always have my hand sewing project also.
I believe that with hand piecing, it is not nearly as necessary to press each seam as you go, because of the control you have over each seam.
Also, the process of hand piecing goes so much faster than I ever thought it would! I thought it would take forever to hand sew a long seam, but it goes quickly.
Enjoy the process!