Vintage Singer 111W153 Walking Foot Sewing Machine #1

Vintage Singer 111W153 Walking Foot Sewing Machine #1 111W 153, 111W 154, 111W 155 etc. I'd like to hear from folks who own and know about these machines. Much of what I've learned is from videos posted online. Maybe you can answer some of my questions here. I hope to get this in great working order and to get some good use out of it. It's a big step up from my "heavy duty" Singer machine. Clutch video:    • Singer Safety Clutch