Almost everything is perfect: on-board configuration, PBT shell which feels great to the touch, excellent cord which is extremely light and flexible. Dream mouse, or almost.

My one big complaint is that the large RGB strip (non-PBT) which is the found on the right side of the mouse (and was also found on the Secret M's predecessor and complained about) will easily stick to whatever finger is resting on the mouse, especially after an extended period of time.
That feeling of your finger being glued to the mouse is not pleasant and you may find yourself shifting your finger around trying to avoid the RGB strip.

If there is a future iteration, I really wish Ducky would get rid of the RGB strip or put it somewhere where your fingers won't stick to it.

I'll give this 5 stars for sure,but i wish the feather had these side buttons.This mouse is heavier and just as smooth. Iam caught in the middle as far as what mouse to use for games. Feather for First person shooters and this retro for mmorpgs.

I've been using one of these for three years, and I'm quite happy with it. Unlike the lightweight and ambidextrous Feather, the Secret and Secret M are larger, shaped for the right hand, and have some weight to them. I originally purchased this mouse because of its PBT shell, looking for something that would be comfortable to use with my sweaty hands - all this time later and I don't ever remember it feeling clammy.

After about 40hrs / wk of use for two solid years, one of the microswitches started to go - if you're comfortable with a soldering iron, replacing components on this mouse is plenty easy should the need arise. The buttons will start to shine eventually, but not as quickly as the typical ABS ones.