I tried to like it but returned it because it made a loud ping noise whenever a key was pressed and hit the back plate. They layout was fine but the construction just did not feel like $400.
"To disable the “click” noise, press and hold the Progrm key and tap the piples/backslash key (the key directly to the right of the letter “P”)."
https://www.kinesis-ergo.com/support/technical-support/faqs-...