I've had my new 1172 for almost 3 years now. I have had ZERO issues that were not solvable in 20 minutes. I have used mine at least 40x and drive it 400miles each trip.
I am 100% convinced problems with the slides are SOLELY due to not leveling the truck/camper EVERY SINGLE TIME before you open the slides.
Are you an impatient guy? Then I highly recommend that you do NOT buy a truck camper with a slide, especially a Schwintec slide.
I love my 1172. Works for all 3 of us as a portable Motel for every soccer match all over the state in some seriously warm weather too.
