I bought this mouthpiece and with a V16 or ZZ strength 3 reed I got a perfect loud and rich sound. Compared to the hardrubber mouthpieces, this one does not forgive problems of embouchure, thus I won't consider it a beginner's mouthpiece.
This one is really easy to play out of tune or squeak if one does not have the proper technique. On this mouthpiece, altissimos come really easy and there is no need for doing a great pressure on the embouchure.
I tried a Theo Wanne "Durga 3; Size 8" as well and for me, as an amateur, the "fire" is good enough for everything I need. This mouthpiece is already luxury. I recommend this only if you either need to be loud or if you want this cutting sound in your repertoire, this is a no-go mouthpiece for classical or chamber music.