Build Quality

Overall build quality is solid. When shaking the mouse, a rattle comes from an indeterminable location. When applying lateral pressure, some creaking, but no flexing of the shell can be observed, and activating the side buttons by squeezing the sides isn't possible. Lastly, no accidental clicks occur when slamming the mouse down.

Buttons

Main buttons on the R.A.T. 8+ ADV are very good. Both pre and post-travel are low, resulting in a snappy click response. While the buttons are separated from the shell, lateral button movement is barely present. Button stiffness is light. The switches are from Zippy (blue plunger).


Side buttons are excellent. They're stiff, but both pre and post-travel are virtually nonexistent, and the click feel is nice and tactile. Button placement and size is good as actuation is possible very easily by rolling one's thumb over these. The "precision aim" (sniper) button is out of the way, and too has low travel. I strongly suspect a set of tactile switches is used for these.

At the top of the mouse is a single button for cycling up and down through the set CPI steps. Its click feel is good, but it being a rocker can make it difficult to properly actuate. Two tactile switches are used here. Next to the left main button is another button that cycles through the available profiles. Click feel is fine, another tactile switch is used for this one.

Scroll Wheel

The scroll wheel is good. Scrolling up or down is somewhat noisy, and the individual steps aren't as defined, resulting in average tactility. The middle (scroll wheel) click requires medium force for actuation. I'm unable to identify the switch brand. In addition to the regular scroll wheel, the R.A.T. 8+ ADV also features a so-called barrel scroll. By default, this barrel scroll can be used to scroll horizontally, which is quite handy for productivity work.

Coating

The R.A.T. 8+ ADV has smooth and somewhat glossy-looking plastic all over. It doesn't attract fingerprints, dirt, or the likes too much. It's easy to clean, and there are no signs of wear left after doing so. All in all, an excellent coating.

Button Sound Test

Disassembly

Disassembling the R.A.T. 8+ ADV is quite easy actually. Remove the three screws marked above. After doing so, the main button assembly can be taken off. Below will lie several layers of PCBs. The first merely holds the two tactile switches for the CPI buttons along with the connector for the barrel scroll encoder. The main PCB beneath that holds everything else. A ribbon cable connects another tactile switch to the main PCB. All the side buttons sit on their own PCB inside a different section of the mouse. The PCBs themselves are rather thick. Several screws are used to affix the main PCB to the bottom. The MCU is a Princeton Technology Group PT32C302. Please refer to this for the datasheet.


As for the soldering and general quality of the PCBs, I'm unable to find any noteworthy flaws.