I've owned a breuer arm for maybe 2 years now. Previous to that i owned the systemdek profile arm and the origin live silver mk3. First of all i have no definitive statement as to whether or not the breuer is a "good" arm. Taste, set up and system synergy will play a critical role in determining subjectively if it is "good" or "bad".
With that said, it is designed by the swiss. Have you ever heard of anything bad designed by swiss engineers? I haven't. I've used it with a denon 103 and a jan allaerts mc1b mk2. In the context of the rest of my system i find it a very fast, dynamic and transparent arm. My experience was that i could "hear" the origin and profile arm but with the breuer it stealthily imposes very very little artifacts into/over the music. It reminds me of that cliche "the system just disappears and your just left with the music" There are moments when i find the music "astounding" with it in the chain.
Warning: The rest of your system has to be transparent and neutral and up to snuff otherwise this arm won't really reveal its capabilities. In other wards no wooly or syrupy systems. Second, it is (i think)very sensitive to vibration therefore you could have a negative experience with it but its not the arm but something else. Hence i have heard some describe it as "bright!" "mechanical". I too have experienced this but ultimately through perseverance discovered the problem was else ware and not the arm.
FWIW some very big name audiophiles own and continue to use it. This is a serious arm with alot of potential in its design.
Word is that it has a bearing that is EXTREMELY resistant to friction. (A great bearing) Compared to the other arms i've owned i can totally testify to this. You have to have some arm experience behind your belt before you own this one as it is kinda easy to destroy a cartridge because of this. When i move the arm around i can't feel the pivot point. So, so light, utterly no sense of resistance, is what i mean.
It has no arm lock or fingerlift. Oh boy! To avoid cart damage i made a little diy contraption to hold it in one place. Basically its like two tiny field goal posts between which the arm will sit while not in use.
How does bring the arm back after one side has finished playing? I raise the arm with the lever lift and bring the arm to the outside of the record by (gently and carefully) pushing the counter weight as it slides along its "rest".
Anyways, to summarize, i think its a superb arm that is fast, transparent, neutral, honest, renders true timbres while not detracting from the music. It is natural, warm but not romantic. I would be very curious to experience a schroder and to compare my experience with it against the breuer. I venture to say that the schroder would be more organic while the breuer is more toward "natural".