From a dead stop you can only upshift to 3rd gear before moving, if you try to push it to 4th gear it will say "Shift Denied" until you reach the speed range for that gear. Which can be easily be done by 20-25 mph if you really wanted to. It will automatically downshift as your speed drops when approaching stop signs and red lights, just try to shift in the 3,000 rpm range and the drive will be comfortable. There's a small lag when you shift up or down, so you should press the button around 200-300 rpm before you want it to shift. For a more aggressive drive, shift in the 3,800-4,000 rpm range in each gear, which will stretch out how fast you can go between shifts.