I love my S10. It has never given me any mechanical problems except sensors and the fuel pump, but being 14 yrs old and having 178000 miles, I think that is excellent! There is very little rust and I live in the north east. The mileage is at best 16mpg on the road, around town its about 12mpg. This truck has only left me stranded once, that is when the fuel pump went. The truck is fantastic in the mud and has a very comfortable ride
I don't have one favorite feature, I love the whole truck.