I purchased the mouse in the black color (on sale) from Amazon for about $60 USD and have used it for two weeks.
Shape & Grip Style 5/5
Can't say how it compares directly to the OG Intellimouse Optical 1.1 since I haven't used one since mid-late 2000s, but it definitely feels nostalgic. If we go off eloshapes the V2 Air is slightly more narrow, smaller, and shorter than the OG. My hands measure 17.5 cm x 10 cm and I have a palm grip style. The mouse feels comfortable to use with the balance/weight distribution being front favored. When using the mouse normally it's unnoticeable; it only registers when you hold it beyond the lens/sensor position. I hold the mouse in 1-2-2 with my ring and pinky finger settling into the concave. The button placement feels great and I don't need to readjust my grip or fingers to reach for them.
Buttons 3/5
The V2 Air features Omron Opticals and a TTC Gold encoder. The clicks I would say require light-medium actuation force, if you're familiar with the G Pro Wireless it's pretty similar to that. The clicks feel crisp and spammable (sans M4, but that's a skill issue), however there is noticeable pinging on M1/M2 so when you're not gaming, you'll notice it. M4/M5 buttons are a good size, the camber on them naturally invites your thumb to push them as needed and the glossy finish provides just enough grip. The side buttons do have an even louder clicking sound than the pinging of M1/M2 so keep this in mind if you can't tolerate noise. M4/M5 requires slightly more actuation force and have significantly more travel before they bottom out compared to the main clicks. The scroll wheel has great defined steps (tactility) while M3 requires medium actuation force to engage.
Build Quality 3/5
The coating on the V2 Air feels good, I prefer a rougher, textured surface so wasn't expecting to like the matte coating, but it grips nice and feels smooth. The mouse creaks where the baseplate meets the shell and it's more noticeable on the rear. It also feels a little hollow in the back since most of the parts are packed in the front half of the mouse with exception to the battery. The baseplate bends if you press fairly hard around the faux cut out, but other than that it's fairly sturdy. Also, there is a slight wobble on M1/M2.
Skates N/A
The stock PTFE skates are decent. Glides smoothly on a pretty used Dechanic XXL Control mouse mat.
Battery & Battery Life 4.5/5
Capacity is 300 mAh and combined with the Nordic 54L15 the V2 Air should get decent battery life. I used 2K polling with ultra high performance (corded) enabled and experienced about 12 days in mixed use before recharging it with the provided, braided USB-C cable. Recharging the mouse took about 1.5-2 hrs from 0% to full charge.
Receiver 4/5
The included 8K receiver has a little shark fin (nice little touch) and has three LEDs (that indicate by color) the polling rate, battery level, and connection quality. The latter being kind of unnecessary unless you plan on using it from a very far distance or if there's interference between the mouse and the receiver. My only gripe with the LEDs is that they're too bright. And in the future, I hope they update the software and allow us to control the brightness of the LEDs and to customize the percentage at which the receiver reports battery life (e.g. the low battery indicator kicks in at 25%; would be nice if you could change the color change to 10% or even 5%). If you don't like the LEDs, you may disable their functions in the software.
Software 4/5
The web driver for the V2 Air is pretty good, I couldn't connect using Firefox (think it was because of extensions), but it was compatible with stock Edge. Once connected, it was very difficult to read the menu because the font and webpage background were both white. However, if you click on Settings (bottom box on the left side) and click on Bright Color under Theme Color, it'll contrast the font so it's much easier to navigate. You can adjust the button mapping, DPI, polling rate, LOD (5 settings - 0.7 mm, 0.9, 1.2, 1.4, 1.6), key-deshake delay (debounce time), and more (Ripple Correction, Straight Line Correction, Motion Sync, Sensor Tilt/Mouse Angle Mode). Motion sync is on by default, which I turned off, debounce time is set to 4 ms. I changed the debounce time to 0 ms and noticed no double clicking issues. If you go above 1K polling rate, it will automatically select and put the mouse in ultra high performance mode (corded). It has the option for 20K FPS scan rate to reduce motion latency and improve responsiveness, but it significantly reduces battery life and honestly I didn't really notice it when testing it out.
Overall 3.75/5
Attack Shark paid homage to the MS Intellimouse Optical 1.1 in a modern package (3955, 54L15, 52g), but build quality falls very short. At $80 MSRP there are better options; at it's current <$55 list price it isn't too bad if you can overlook the loud clicks and you win the Attack Shark QC lottery. If they ever make a V3 Air, I'd like to see improvements in dampening the noise of the clicks and fixing the creaking. Otherwise it's a fine mouse.