Does anyone want or own one of the robox or Up printers. I need some feedback on the quality and performance from these things. I think Robox isn't out yet, but the Up is.. right?

its weird how none of the kickstarter printers have any talk about cooling systems. one of the most likely part to fail is the extruder, but nothing seems to mention how they are cooled properly, only about how they can be changed easily. What does that have to say about longevity.