Have to be honest, unless your track driving on the limit leave it on. People underestimate this safety device on their car, don't moan about it it is there for a reason and one day it may just save you and your car!
If your not sure what it is for google it, go on a driving course somewhere and learn what it can do for you, a staggering 75% or more of drivers don't know how to use ABS properly i would supect it is far higher with ESP!! sorry if you think i am ranting but this is a pet subject of mine.