My initial reaction after connecting and installing the program is happiness. I recently received the keyboard and, in addition to it, the "Anywhere 3" mouse. I've used Logitech keyboards and mice for a long time; this kit replaced the older wireless MX, which I'd been using for 12 years and was still functional, but the older mouse seemed heavy and cumbersome, and the older keyboard's keys were loud and raised in comparison to more contemporary options. The new keyboard's keys were not too high, had a soft stroke, pleasant illumination, were heavy, had a full set of keys, and were compact. The materials, housings, and buttons feel wonderful to the touch. This is an expensive instrument, as is evident. Following the installation of native software and activation of automatic keyboard and mouse switching between computers, the old devices—along with the mouse—went to the box, freeing up a significant amount of room on the table. I have only worked for a day, so I can't yet comment on how the batteries are performing. I need to continue my observation.