Fanttik C8 Nano Cordless Electric Scissors with LED Display, Rechargeable Cardboard Cutter with 2 Blades, EasySwap Blade Change, LED Light, for Thin Cardboard Carpet Leather – Black

From the manual and product materials, the C8 Nano has the following features:

Pros

Here are the strong points / what users are likely to appreciate:

1. Versatile cutting
   It can handle a variety of materials: cardboard, leather, carpet, fabrics. That makes it useful for crafts, packaging, light renovation, upholstery etc. The 6.5 mm cutting depth is fairly good for non-rigid materials.

2. Good speed & power
   With ~230 RPM and a high-magnet motor, it’s faster / more capable than basic manual shears and many small cutters. The “15% boost” marketing claim suggests it improves over previous model(s)/competitors.

3. Adjustable speed modes
   Being able to select ECO / REG / MAX mode means you can conserve battery or use high power when needed. That adds flexibility.

4. LED Display + Light
   The battery-level / speed display is useful: you won’t be caught off guard by the battery dying. The LED light helps cut in lower-light conditions or see cut lines more clearly.

5. Blade change convenience
   The EasySwap / spindle lock mechanism and included tool make blade changes safer and easier. Having two blades included is also a plus.

6. Compactish & cordless
   Cordless tools bring more freedom. Being powered with a rechargeable battery and USB-C is modern. Also, good that it has a 40-minute run time under moderate load.

Cons / Limitations

No product is perfect; here are possible drawbacks or things to watch out for:

1. Not for very thick / rigid materials
   While 6.5 mm is okay for many flexible or moderate materials, the tool will struggle or wear fast when trying to cut very thick or hard items (e.g. hardwood, thick plywood, dense composites). If your work involves heavy-duty cutting, this might not suffice.

2. Battery life under heavy load
   The “40 minutes” runtime is likely under lighter or moderate use (lower speed mode). At MAX mode or when cutting tough materials like leather or carpet, the battery will probably drain much faster. Heat / motor stress could also reduce performance.

3. Blade wear and replacement cost
   Cutting hard or abrasive materials (carpet backing, etc.) will dull blades faster. While two blades are included, replacements might be needed frequently depending on usage. This adds to cost over time.

4. Weight & ergonomics
   At ~470 g (plus hand fatigue, grip, etc.), holding it for extended periods (for large jobs) might be tiring. Also, physical size / balance might affect maneuverability in tight spaces.

5. Cost vs simpler tools
   If your needs are minimal (occasional cardboard cutting, simple crafts), this may be overkill — a manual cutter or simpler electric cutter might be cheaper and “good enough.”

6. Safety considerations
   Electrified blades bring risk: accidental activation or contact. While it has lock / safety features, user must be cautious, especially around fingers, fingers of others, or in cluttered spaces. Also, thin fabrics may get pulled if not held properly.

7. Charging infrastructure
   Even though it uses USB-C, you’ll need a compatible charger supplying enough current (5V 2A) to properly charge. If the included cable/charger is lost or of poor quality, charging might be slower.

8. Cost of the device itself
   Depending on region (shipping, taxes etc.), price could be relatively steep for what is, after all, an electric shears tool.