The keyboard itself is processed nobly in my opinion. I had long the G15 in use, which already seems almost cheap compared to the G19. I think it will be over time gamers keyboard, it's nice to use them or looking at them too :). Actually there is nothing to complain about if you caught the right one. I unfortunately had some bad luck there. The first keyboard I ordered here on Amazon, I liked right away, but the 7 key only worked with firm pressure. I then found that this button is pretty important. The buttons should work properly already, especially with the price, the part went back. A time later, I do it again slammed spontaneously on electric market and allowed myself the G19 again. The buttons worked properly, but the backlight in the range of Num-block had a loose connection, so that depending on the movement of the right part had a blue to purple shimmer. My girlfriend did not like me :). I have also exchanged again, but now I have one that works 100% and I am satisfied.
A list of pros and cons I can save ... what the keyboard can, is in the product description. If everything works, there is nothing to complain about. There is nevertheless one point deduction: I think a keyboard in this price range should be reasonably controlled before it is shipped. Two out of three were just not completely okay!
What you should also know ...
There is little applets that have been written for the G19, although there are now even longer. If your like me you had in the G15 in use, you will be disappointed by the applet selection for the G19. I watch for before buying, if there is even the applets that you need! And looks right, you confuse the search queries of users quickly with NEM applet offer, I at least :) Ich finds also a pity that Logitech itself nothing is offered. Some applets the G15 also appear at the G19 to funzen, but it looks well made. For this you need not such a great display.