The K750 can bend or lay flat on the table. The charge level of the batteries is constantly with me 100%. My desk is by the window, and even with murky days the displayable on request charging indicator is always in the green zone.
Mostly I read the key labels are glued on a problem - so I can confirm that neither of these keyboard or other keyboards with this technique. Which of course does not mean that other reviewers may have had different experiences. For me, however, a key label has gone off in all these years with such keys never.
Super I find the small USB stick, which no longer needs to be connected by cable to a receiver on the desk, as it was still the old Cordless Desktop the case. The reception of the K750 is so far always been good, even at several meters away.
The special functions (sound louder, quieter, mute, track forward, pause, back, etc.) are easily accessible.
The buttons are not illuminated, but that's not been personally important to me because I "blind" tap. Who still looks at the keys as you type and often writes in a darkened room, which could also think about a backlit keyboard.
For me it was important that more environmentally-friendly solar technology. The keyboard is also PVC-free.
One small problem I had at first - although you can enter the BIOS setup by pressing the "DEL" key when your computer starts, ie the keyboard is detected before starting the operating system. However, I have a dual boot set up on my system where I can choose between Win7 and Vista. At this point, the keyboard initially did not work. Thanks to a comment to this review (see below) but I have now learned that you only need the USB Legacy Support. Now, the keyboard also works already in the boot process.
Overall I am very satisfied with the purchase and can recommend the K750 solar keyboard.
PS: Even now, after a few weeks use I can only say positive things about the keyboard. I can recommend it only.