I enable Estouchy and rather than looking like the screenshots in the pinned thread, it looks like an oddly spaced and misproportioned Estuary. I don’t think the skin is being applied correctly.
Estuary enabled: http://imgur.com/M4PPsdY
Estouchy enabled: http://imgur.com/CQ7aSa1
This is just a stock Krypton install.
Edit: There is also a SIGNIFICANT hit to UI navigation speed when I switch to Estouchy.