Product review (4 stars): So far so good.
This replacement kit looks promising.  Like many reviewers for this part, I have gone through multiple"Whirlpool W10350376 Rack Adjuster".  In my case it's four since purchasing a new washer in late 2012.  Almost made it a year before needing a new adjuster.  Found this kit promising as a more reliable system for the top rack.  I am hopeful.  Unlike others on here I don't think this kit feels more "sturdy", sure more metal looks better, but the main piece of plastic was fine, it was only the axles that were a problem.  It's still plastic that is holding the wheels on.  However, it's a single piece of plastic, not two little "clip" like pieces of plastic.  So I think these will take a lot more abuse.

One down side, is I lost two "slots" to place glass ware.  This new adjuster kit takes more space away from the top rack.

As for the install, yes I think some hand drawn diagrams that better conveyed the context of where the parts go would have made things easier.  I think I spent 10+ minutes figuring out the right side.  I did the left side in two minutes.  The kit came with a Philips screw driver to torx adapter.  However I used my own ratcheting screw driver with torx bit as the adapter that came with the kit was rather small.