I ride about 5 miles a day from home to school and back. Very flat, good weather, easy ride, and I'm not huge or anything. I figured a cheap bike like this would last a year, and then I'd upgrade. I've had it a month, and there have been a number of problems.
In general, the parts are flimsy. The seat post clamp won't prop up the seat. The handlebars are loose because the bolt that holds them comes loose. The bike feels like it's off balance. Also, while making sharp turns, my toes scrape the front tire. Biggest problem - pedals made of really weak plastic that actually ripped. Drivetrain, shifters, and brakes OK so far, but I'm not expecting much.
Do NOT buy this bike if you expect to ride it on a daily basis. Spend 2X or 3X more and get better quality components.