Product review (5 stars): Great purchase - saved me now and will pay off long term.
I don't normally leave reviews (yes, sorry, I read them a lot but and not the best at leaving them) but this is one of the best purchases I have made from Amazon. Why Whirlpool brands (e.g., Kenmore) don't use metal instead of plastic is beyond me.

Bottom line:
1. Easy to install - took 20 minutes from start to finish
2. Metal instead of plastic - no plastic tabs to break (easily I might add) after the constant heating/cool down in the dishwasher. I expect the metal here to last much longer
3. Quality - seems so far (I just installed it last night) to be of great quality. Very solid and stable as you roll out the top rack - the plastic used to sag. Also seems durable and like I won't have to replace it every year, unlike the plastic parts.
4. Shipping - showed up 2 days before I expected it!

Only con was with the instructions. They are very detailed, but the pictures are a bit fuzzy. You can figure it out though if you are handy at all.

All you need to install is a flat head screwdriver (to take off the old parts) and a standard Phillips head screwdriver to install the new parts.

Hope this helps!