The Cherry makes a high impression, despite the low price. The keys rattle paddles persisted over the keys and have a good pressure point. The RX250 is the same, however, is somewhat rickety built.
The scroll wheel is rubberized and snapped very soft. It grinds not somewhere on the housing and runs in both directions pleasantly clean and Geräuchlos.
The mouse also has a third button when you press the wheel. Many need them not, Linux users complain if it is missing, I use it in some Windows programs. The "wheel button" has a short print path, can be pressed accurately and rolls a while not press up or down away. Overall, the a little better than the RX250. When even the wheel grinds turn something in.
The optic is centered in the housing. The caseback is transparent, so does not light all around. It runs smoothly on my Kunststoffmauspad with printing and structuring. Since I had problems already with many much more expensive mouse, and laser mice.
What to say? It is quite large, but side by side is not greater than the Logitech. The mice hump is just as high but something central in Cherry. Mir is the Cherry comfortable in the hand. 75g has on the scale, making it very easy. Up on the wheel, there is no rubberized parts. While there is a trend, but I like the rubber parts not particularly because they have the tendency then to dissolve with time.
The scanning accuracy: I have now tried 4 different mice. A wireless mouse, Hama notebook mouse and these two. Besides that, there are different rates, there was no better placed than the other. Especially with diagonal move the mice tend to "stairs". However, each in itself different. Since the cherry was no better or worse than the others.
I actually put the Logitech as a substitute in the cupboard. Maybe I'll find even more meaning in the 4-way wheel. As a purist, I must say the cherry mouse is exactly what I was looking for.
An inexpensive mouse, well made and no frills.