These are well-made, solid shears. The blades are very thick (6 mm, or nearly 1/4"). This means there is very little flex in use, which is vital when cutting through thick fabric or multiple layers. This also means that the in use the force of the blades' curves meeting is be focused on the cutting edge, rather than bending the blades.
The rubber coating is very thin; just thick enough to provide cushioning and non-slip properties. We will have to see how such a thin layer holds up over time and use. But it has no impact on the space in the bows, which is good for those of us with sausage fingers.
These are a heavy tool, with the 8" shears weighing in at 200 grams (almost half a pound). While this reflects the blade quality (thickness), it could be tiring to use them for extended periods. My daughter specifically mentioned that she is glad we chose the smallest pair for that reason.
Overall a serious and well-made tool, precise enough for fine linen, and big enough for layers of 700 gsm wool. Well done!