Build Quality

Overall build quality is solid. When shaking the mouse, a rattle comes from an indeterminable location. When applying lateral pressure, no creaking or flexing of the shell can be observed. Activating the side buttons by squeezing the sides is impossible. Lastly, accidental clicks when slamming down the mouse do not occur.

Buttons

Main buttons on the Lift 2 Ergo are decent. Both buttons have moderate pre and post-travel, and button response is rather firm and snappy. That said, button stiffness varies greatly depending on where the button is actuated, and unless pressed toward the front third of each button, actuation becomes uncharacteristically stiff, especially right next to the scroll wheel. Despite being visually separated from the shell, button movement is minimal even when provoked. A pair of TTC optical switches (100 M) are used.


Side buttons are decent. Pre-travel is moderate, but post-travel is massive to where each button can be pressed into the shell in almost its entirety, though the actuation point remains mostly even. Button size and placement are quite good, as actuation is possible rather easily by rolling one's thumb across. A set of switches from "W" (blue plunger) are used for these.

At the top of the mouse is a single button for cycling through the set CPI levels, which works fine. A seemingly unbranded tactile switch (black plunger) is used here.

Scroll Wheel

The scroll wheel is decent. Noise levels are very high and of a rather unpleasant type, and tactility is average at best. The encoder comes from TTC (gray) and has a height of 13 mm. The middle (scroll wheel) click requires medium force for actuation. A seemingly unbranded tactile switch (yellow plunger) is used for this one.

Surface

The Lift 2 Ergo has a matte surface at the top and a dot pattern on the sides. Grip is fine, but the dot pattern does attract dirt more than average. The matte surface at least is easy to clean, and there are no signs of wear left after doing so. All in all, good materials.

Button Sound Test

Disassembly

Disassembling the Lift 2 Ergo is easy. The screws are found beneath the rear skate. After removing those, top and bottom shell can be separated with ease.

The internal design is simple yet efficient. The side buttons sit on a plastic assembly clipped to the main PCB. Everything else sits on the compact and moderately thin main PCB, which has been affixed to the bottom with three screws, though none are found at the rear part of the PCB. Instead, we can see a large layer of glue there, whose purpose is unclear. The MCU is an NXP LPC5528, whose datasheet can be found here. Production date for the main PCB is the 38th week of 2023.


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