The general idea of the corner optimizer is great, however it took a while to install, we purchased two.  I won't however be able to store that much on the racks.  I will try my best, but it has solved that problem of the wasted space but honestly, there is still a lot of accessible wasted space at the very back, probably about a foot.  Wish I would have designed my cabinet without a drawer, that would have probably caused me to rate higher.