My Outback had cable slides. I found them to be high maintenance. They were suppose to be checked for adjustment every 90 days, whether or not they were used, due to the fact that there is always a set of cables in tension. Long story short, the gearbox on my kitchen slide stripped its gears, we had to use channel locks each time we wanted the slide in/out until we got it fixed. It was a quick $125 fix, which I did myself, but nonetheless a pain....
TV: 2015 F-350 DRW, CC, 4x4, with 14k GVWR package, 98 gallon TransferFlow Aux Tank, Timbren Shocks
TH: 2014 Voltage 3950, Sailun S637 all around