I have had mine for 6 months approx have used it only in first gear for the most part on a 405 and the hose seam better then the one that comes ona ps tool thats used to crack all the time it needed serious babying.
I get a whistle from the hide a hose cuff never seen it colapse but I never run heat exchanger when cleaning upholstery.
Well we did run in second gear my son used a #4 flow sbend wand and I cleaned a sectional with heat exchanger on once but thats not the norm itnever colapsed on me but I dont fight with my hose and try and make something bend when it shouldnt or stretch when I'am short.
I would say the hideahose and grey vac hose is way better then original
prochem tool the head may not last near as long but it dries upholstery faster and cleans better for the most part.
The other thing is a guy doing the work himself as opposed to an employee beating the crap out of the equipment could play alittle part in whats going on.