Everything in the purchase suits, a very necessary product.
I also liked the lighting, which was secondary when choosing, especially the ability to make animations for the LEDs frame by frame.
The new side button does not bother me. I do not even notice it, although it can be used if necessary.
Pros
A wonderful and comfortable mouse. At first I took the MSI GM20 - for the whole day my hand could not get used to it - it was very "humpbacked", and this one, like the previous "bloody" mice, is comfortable.