It might not be what you're asking but I own this keyboard and cleaned it recently popping each key off and washing them in soapy water. I used a small screwdriver and almost all came off without needing to apply too much pressure. By the end I had found the knack to getting them off and next time will be a lot quicker. The letter and number keys pop on easily as you'd expect. The shape of the connecting part of each key mean there's only one way up you can push them on - handy for the arrow keys otherwise you'd have to judge from the angle of the key whether they're up, right, down or left. The larger keys (space, backspace, return, etc.) have a metal bar which clips in easily. The backspace on mine took a few swift hard presses to re-seat properly but all's working fine.
I got this keyboard just yesterday, after suffering with the use of a cheap ten quid one since my last one died. This one feels very comfortable and easy to type. The keys feel great and I've noticed I am making a lot less errors than with the cheap one.
Decent membrane keyboard but I got the mechanical G413 for less than this a few months ago (I know, I know, no time machine...)
I bought this as a works keyboard on offer at that time too. Excellent piece of kit. No complaints here. Heat
Got this for £24 in dec too, good keyboard.