Product review (5 stars): Exactly what I wanted
I have a Whirlpool dishwasher that, for some reason, only had one silverware rack (i.e. half of what comes in this set) -- which is definitely not enough.  So I got this and installed it.  It's extremely easy to install -- you just hook it on and can easily remove to empty.  I kept the silverware holder plastic on one of the units and removed it from the other.  Now I always have enough space for stuff.