They are very friendly, extremely knowledgeable and they are always available to offer assistance. In my opinion, this machine is the bees-knees when it comes to sewing boat canvas. It's a very simple machine, no frills whatsoever. It's rugged, it's bulletproof and it's up to the task of sewing anything you can imagine. It breezes right through 6 or 7 layers of Sunbrella.
Zippers are a piece of cake.
And it has no problems with 0.040 inch thick StratoGlass . My canvas lady loves my sewing machine so much, she's gonna buy one just to carry around in her van to use onsite at the marina rather than having to haul her work all the way back to the shop. Besides the monster balance wheel, the other best asset of this machine is the walking-foot. You can sew virtually hands-free as the machine feeds the material through. All you really need to do is guide the material into and away from the foot.