Bowing is far more responsive without sounding harsh.

Even though it's more expensive than her last rosin (can't remember what it was, but is was a light brown and a 3rd of the cost), I definitely notice a richer, smoother sound with this one

I wanted as good quality as possible to help with getting as good sound and mechanics from the instrument as possible.

This dark rosin works well in the colder months, goes on easy, and may improve the sound.

The rosin stays on the hair for quite a long time, and treated bow produces very clean sound, without any harshness or hisses

The rosin enables the hairs to grip the strings without being sticky, and gives a beautiful clean sound

Nice sound

I bought an exotic mix of Original 2 rosins: Dark Hill and Sons plus Kolstein bass rosin (suggested by my fave online teacher Joy Lee on youtube) and that really improved the sound.

Controlling the bow is much easier and the sound that resonates is so much clearer and warmer.

What a beautiful sound this made.

The sound is crystal clear and beautiful

Easy to start using when new, doesn't make a mess on your instrument, provides plenty of grip that produces a strong yet smooth sound (Cello)