The mouthpiece looks beautiful, blows freely, and sounds nice and full.

The 1c has a wider cup size than the Bach 3c that I switched from, so I find the 1c offers a more free blowing sound, more tone control, and a wider dynamic range

Bach 1C Mouthpiece helped me to improve my sound

One of the high school students I help was having trouble getting the sound she wanted.

If you're looking for a mouthpiece that will open up your tone quality with a richer sound, I strongly recommend this one