I don't really understand the choice of putting a button behind an I2C chip - this means no interrupt available, and makes working with that button quite awkward at best.

In terms of the load cell itself - my unit had a significant amount of drift initially. We're talking over 40g over the course of an hour - basically forcing to go through the calibration process every time I wanted to take a measurement, which isn't exactly amazing. Since then, I took the unit apart and found an explanation - the upper part was pretty loose to the load cell itself, and tightening this screw made the drift much, much lower (it's still drifting by a few grams, but 1% accuracy on a 5kg load cell this cheap isn't too bad).

The enclosure itself is a bit odd - two of the four mounting points are seemingly blocked by its upper half. Two is enough in my use-case, so that's fine, but definitely a bit odd.

Overall, the idea of providing some logic over I2C to compute the weight is pretty good and well implemented, but I feel like going for M5Stack's Unit-Weight I2C and your own load cell and mounting/casing would be a better option - it seems to be everything that's good about this Mini Scales Unit, without the odd parts.

A very nicely constructed unit.
Very easy to operate with the Core2 using Blocky!