This was my first time and I will say sweing a straight line is no problem, it is when you get to the corners that you need to know what you are doing. And making the pattern had some tricks to it too that allowed you to get four seams to come together without wanting to ram your head into a wall.
It is a dying art, I couldn't find anyone near me who would touch it, that is why I drove from Maryland to Kansas to do the seat.
I will be doing this in the very near future sewing Velcro to vinyl to make covers for roll bar padding. I've got all the material cut, just gotta sit down and do it!