Jade Rosin L'Opera

I read a load of positive reviews on this rosin. I got one for testing.

In my opinion it does not grab the low strings all this well.
The sound was described in the reviews as "pure"...... In my opinion it's "weak".
In particular, as said above, i don't get an effective grabbing i lower strings.

I vastly prefer other rosins over it: in particular the Bernardel and Andrea Solo rosins.

And the handling is not best. The box is not very protective. And when extracted, i always fear that the rosin "detaches" from the cloth. And the dimensions are too big.