This was a great keyboard while it lasted, unfortunately the keycaps seem to be very brittle. Using the tool provided I pulled them all off to clean underneath, and on putting them back on found 7 or 8 keys to have broken around the little + where they mount onto the switch. Found a replacement set to be not that far off the price of a whole new keyboard, so tried a little dab of super glue and, of course, it found its way into the switches on some keys and jammed them. Bought replacement switches, had them fitted by the engineer at work, but when pulling off the keycaps another handful broke.
I told him to keep it, and as far as I know he threw it in the bin. Not the best result from a 5 month old $280 keyboard.