Product review (4 stars): Very economical repair option;  best if used @ first signs of rack damage
My dishwasher is over 14 yrs. old and still running great, but the top rack had alot of damage to the vinyl and resulting rust.  I didn't realize there was a repair product like this, and it should have been addressed long before the rack was so far gone.  Nonetheless, it seems to have done a good job, although I just did it a few days ago so don't know how long it will hold up.  I think one would definitely get the best results if it was used at the first sign of rust or damage to the vinyl coating.  Also, if you do have alot of areas to be repaired, DEFINITELY get more than one bottle.  In fact, I may order a second bottle to go over the areas again (I was stingy w/ the second coat because the bottle was almost empty), as well as touch up some minor cracks in the vinyl coating of the lower rack, not yet broken or rusted.  Another thing that makes it difficult to repair large areas is the fact that it clumps up very quickly.  I had a jar of paint thinner right there to dip the brush in in order to keep it pliable during use...also recap and shake virgorously often during use.  Even if it doesn't last a long time, it defintely improved the looks of my rusted rack, and it keeps the rust from transferring to your dishes.  The cost is minimal and well worth it in my opinion, even if it's only a temporary fix.  In addition, the company (RusSan Enterprises) was SUPER about fast correspondence, fast shipping and great packaging.  I give it 4 stars rather than 5 because of the fact that it clumps and thickens so quickly, it makes it hard to get full use of an entire bottle.  However, based on initial results and the overall dramatic improvement in the looks of the damaged rack, I WOULD DEFINITELY RECOMMEND THIS PRODUCT AND THIS COMPANY!

UPDATE:  As of November, 2010, the majority of the repairs to my dishwasher racks were still holding nicely from my initial repair job using this product. Some of the most badly damaged areas....large areas that were very badly rusted, almost completely through the wire in places....were just starting to show rust through the applied product, but I think those areas could've been fixed up again with another application.  We moved in Nov. 2010, so I won't know for sure just how long the repairs lasted....perhaps longer than the old dishwasher itself. This is an amazing product!  As I said in my initial review, if repairs would be done at first signs of rust/damage, the results would be even better (nicer looking, for sure, and lasting longer without the need for reapplication).  But, in my experience, it also worked on badly damaged racks, certainly worth a try if you're trying to eek out more use from a dishwasher that still runs but has damaged racks (new racks are quite expensive, more than what the old dishwasher was worth in my situation).  Again and still, I highly recommend this product....quick, inexpensive fix for damaged dishwasher racks!