I have been using Logitech products for multiple decades. I now use the MX Ergo trackball and the Craft keyboard. Due to significant damage to the nerves in my left hand, including an amputation, I am left with only four fingers with most that have lost sensitivity. I have been in IT for 50 years so my ability to type is paramount. When typing, I must use muscle memory with a significant reliance on the location/spacing of the keyboard and its keys. Being in IT, the ability to switch the connection between my different servers/PCs is very important. I wish the MX Ergo trackball supported three different hosts. I have purchased additional keyboards and trackballs to keep in stock to ensure that I do not need to re-learn key placements. Your products are top-notch.