The ROG Gladius II Origin not only promises a plethora of features, but delivers on them with ease. The sheer performance of the PixArt PMW3360 delivers an accurate and smooth experience across a wide variety of DPI settings and mouse pad surfaces. The large body works well for a palm, claw, or fingertip grip, with the rubber sides keeping your hand where it should be. The ability to replace switches without soldering is great for the long-term, but I do have worries about the longevity of the rubber grips. Lighting customization is about as good as you can ask for, especially if you can make use of ASUS Aura.
With the $90 USD price tag at the time of review, the price of the ROG Gladius II Origin can be a bit tough to swallow as you are definitely paying a premium over the competitors with similar specs. The unique ability to replace your switches should balance out the costs in the long run, as switch failure has been the #1 cause of mouse replacement personally.
The Review
ASUS ROG Gladius II Origin
An accurate mouse with good ergonomics and RGB customization. Replaceable switches should keep this a solid part of your gaming arsenal for a long time.