Love the rollers. I used to start out in doorway in my old apartment. Now I have stanchion in the middle of my garage that I use to start. It's really easy after you are used to them but one mental lapse and you're lying on the floor. My first attempt felt like riding on ice, but after a few minutes it was no problem. You only have about 9" to the left or right to play with. I sometimes ride the rollers for 30 minutes or so to warm up when it's freezing outside. Rollers are also nice and quiet, just a low hum. You can use the sound to smooth out your pedal stroke. When you have no pulsing in the hum you're pedaling smoothly. You can also spin at wicked speeds (60 miles per hour).