The software appears to be from a cheap keyboard, despite the fact that the keyboard itself is good and dependable (I've been using it for a little over a year). Even without the software, it's value for money. I don't regret the purchase, though. Pros: Very low profile (for taste and color), quiet, soft keys, hefty (does not sit on the table), top-notch craftsmanship. The twist is cozy and dependable, but it takes some getting used to. The battery lasts for a few months without lighting, and 3-5 days with backlight (I work 10–14 hours a day and type a lot of text). Pros below: The fact that you can only turn on and off the backlight through a program is quite weird. It's ridiculous that, in order to switch on or off the lighting, you have to locate this software, launch it (which takes time), and then go to the additional keyboard options. Then again, this is not a Chinese company, where this would be acceptable. Otherwise, the application's usability scores a maximum of 3 (out of 5), despite the fact that occasionally, no changes are noticeable.