Some standard types are better than others. Of these I rate the current Mazda 3, X-5 and Mazda 6 as the best. The other type is 'active' cruise control that uses sensors or radar to prevent your car crashing into the car in front. That can be quite difficult to deal with when you get to an overtaking situation, requiring advance planning.

Whichever you buy I urge you to get one with a clear 'cancel' switch on the steering wheel so you can switch it off without having to brake (which automatically switches it off).