Product review (5 stars): Hardest part is getting it back together (belt on).
Bought this because dryer was screeching badly. Hardest part is getting the belt back on, I got the most cuts in my hand from the recommended path.  If I were to take my own advice and remove the rear panel and access there, it would have been less frustrating.  Part assembly was easier than I thought it would be and those tabs on the triangle washers helped getting them down past the first stop.  I also replaced the heating element at the same time, which took no time at all compared to the savings the dryer now sees in run time.  If the rollers are bad replace the heating element.  Mine was okay, but it was cracked in the metal plate in the center and would have failed any time.  It seemed to take longer to dry clothes, I suspect much of the heat was getting wasted with that failing heat element.  New one seems to finish clothes at the same time as washer now.

I would recommend replace ALLL the parts that are in the kit.  I also took some 600+ grit paper and cleaned the roller shafts then lubed them with a silicone lubricant and made sure they spun good.