Schwintek Slides, are these new on the market ?

Plenty of brands having issues with these gear-rail slides with the motors in-wall, they drive a shaft that is also in-wall. The Dutchmen Voltage has had numerous owner issues, Crossroads brand has had numerous owner complaints, and Jayco has also used them in some models - again check the owners forums and most folks say even the repair facilities have no idea with factory help fixing these systems from leaking, stalling, and coming out of alignment.