I have used a logitech ergo keyboard for the last 10 years. This one took a bit of getting used to. The function keys are set up for media, so I changed those back to standard (ex. F5 did not refresh pages & F4 would not absolute formulas). Hitting Fn+ESC switches those keys to normal...all good.
The layout is a little different in that the keys slope up from the side to the middle of the keyboard for more natural ergo hand placement. That took a little bit to get used to, but it is comfortable.
I love the keys! They are the chiclet style with a really nice feel when you press/depress them.