Anyone who might consider this to be “useless” either has never used one or couldn’t figure out how to!
Furthermore, anyone intending on speeding is not likely to do well with cruise control limiting their speed. In fact even with cruise control, the gas pedal still operates as it would otherwise! (But you knew that already).
I purchased one of these a few years back, for $459.00 and within 2 months, it was POOF gone faster that I could speed on any freeway (I suspected one of two valet drivers at 2 different functions I attended in one day, but since I was unsure which one, I opted to take my losses and consider it to be an expensive lesson not to leave valuables out for the taking. I immediately purchased a second unit (2nd time was off of eBay and I lucked out by winning an auction for $429.00).
Now, consider that in my state, fines amounts go as follows:
1 to 10 over the limit -$259
11 to 25 mph iver the limit -$379
26 & over, above the limit -$499
Even with having to purchase it twice I am sure you could envision how/why I can describe this as being one of the most cost effective car accessory purchases that I have ever made! EVER.