it's fast! which most of the times translates to touchy, you can't really make small adjustments with it going up, you can go slow, but to go slow you have to use the lever to lower it in same time with pressing the button to go up, yes it will still go up, but it takes practice to initiate it without shaking the whole car up, unless of course you already have it on the locks and can't go down when you first grab the lever...
other than that is pretty awesome, and the laser that comes with it is pretty neat