Very good! ... Except the keyboard!

About R510JK-XX192H (I got 720 on the occasion of an Amazon promo). I was looking for a powerful configuration and found the price / very interesting power. I mostly use my house and little moved. It is therefore permanently connected to a mouse, keyboard and external monitor. It is for this reason that its weight and thickness do not bother me, although it is far from what is best in terms of "portability". Another element that rarely bothers me since I use an external keyboard: the letters of the keyboard are shown in red on black ... and so it's hard to read them ... And another ergonomic mistake: the indication light upper / lower case is located under the left wrist of the user who types, next to power lights, hard drive etc ... A true beginner student work!
Finally, I recently discovered that the image and sound of the webcam and microphone were so bad they were almost unusable ... shame ...