Product review (3 stars): Pretty good but not a one for one swap.
In a word - EASY!  Well written instructions, solid construction, and much stronger than the crap plastic of the original.  One complaint - this item was advertised as a replacement for my model Whirlpool, however the wheels that came with the kit were much larger than the track in my dishwasher.  Fortunately, the common sense fairy was working when they built this adjuster kit...They used screws (rather than crap plastic, one-time use, retaining clips) for their wheels.  A fast change out with the wheels from my original and I'm good to go!