If you just want my opinion on the Logitech Master MX 3, the answer is in the title (This article is not sponsorized, I bought the mouse).
Since I spend a lot of time in front of my computer, I decided to buy a high quality mouse. After some research, I selected the Logitech Master MX 3. After owning dozen of mice and 30 years of programming, I claim this is the best mouse in the world as I write these lines. If you think I'm wrong, contact me.
First impression when you open the box: high quality.
I plugged the receiver. As soon as I started using the mouse, I was impressed by the fluidity and smoothness of the mouse. It literaly slide on my desk. Well, I must admint my old DELL mouse was a bit tired, but ... I think the laser sensor really has a high resolution that make the mouse very accurate.
This is in my opinion the most awesome functionality. At the begining, I didn't understood you can switch the mouse in two modes:
On the mouse side, there is a second wheel (called thumb wheel) and two buttons.
This mouse has been designed to be ergonomic, and the result is there. Without any doubt it is a high quality product. I love the details, for example the litle Velcro for the USB-C charging cable:
There is only one problem: it will be hard to go back to work with poor quality stock mice!