I have the Reese 15k pro series slider and have been using it for 3 years coming up.
I just upgraded to our crew cab pickup and only have towed my trailer once since up grade and noticed the Turing radius is already better. We used to have a mega cab, but in the times of the mega cab we never used the slider and went into some tight spots.
My grandfather has been using the same for almost 30 years. This past year he finally just bolted the slider into position as he has never used the feature. He has had the same hitch since I was a kid.
So can't complain about the hitch his has been great and so far no issues with ours.