I've been working as a programmer for 4 years and recently started to get a little bit of painful wrist/pinky/ring finger. Since I know the risks of RSI, I wanted to preventively work more ergonomically at work. First I bought the Logitech MX Master. Although this is a very pleasant mouse, the complaints did not immediately decrease. So I decided to combine the mouse with this mouse pad with wrist rest. To my surprise, all complaints disappeared within a few days and in the meantime I have had no problems at all!
Although 25 euros for a mouse pad is not little, it is well worth the purchase! Especially for "power users" like me (to prevent RSI), but purely for comfort it is also recommended for occasional computer users.