The Janome DC4030 offers smooth sewing thanks to the SFS Intelligent Feed System, which features a seven-piece feed-dog. Located underneath the presser foot and plate, the feed-dog's prickly teeth move the fabric through the machine as the needle goes up and down. Applying pressure to the adjustable foot keeps the fabric moving, making for consistent stitch-lines.
The controls are intuitive and easy to use. After winding the bobbin and threading the machine, you can choose your stitch type with a simple press of the button. The machine's stitch selection interface is great: the red and green indicator lights help to highlight which stitch you're working with. Another set of arrows control stitch length and zigzag width. I also love the convenience of the needle position button and the auto-lock button, which enables you to repeat a patterned stitch.
Both beginners and advanced sewers alike will love the pedal sensitivity. You don't have to press down very hard to get the motor going. There's also a speed control lever on the body of the machine, which lets you set your most comfortable maximum speed. The pedal's retractable cord is nice for uncluttered storage, too.
As for durability, this machine is built to last thanks to its metal frame. Some of the working parts inside the machine are made of automotive-grade nylon, which helps reduce noise. The Janome also comes with a number of useful accessories such as a screwdriver, a small spool holder, a needle case, and more. That said, the drawer that holds these accessories is a bit undersized.