Thanks, Ed!
Besides the makers who use them, I think that it's very important for the player to understand what makes Bauerfeind, or any other well-made valve section, a good choice, and why. Also, it's a fact of life that because of the cost of the valve sections alone, you can expect to pay more money for a trumpet/cornet/flugelhorn/piccolo, etc,. that uses the Bauerfeind valve section.
What I like about them, particularly on the Eclipse line, is the shorter "throw", or the distance that you need to push the valves down. It does allow the player to get around on the horn a little more quickly. A shorter throw may have its advantages for most, but not all. It is all about the "feel", isn't it?
Additionally, because of the stainless steel material used for the pistons, the "running in" or "break in" period does require that a bit of extra care be taken with them. More frequent cleanings, in the beginning, and the use of a high-quality oil, will result in a valve section that will make other trumpet players begin to drool, just at the way the valves feel.
Not to get off topic with this discussion, but I think that the Getzen Company makes a very fine valve section, right here in the US. They are arguably one of the best valve sections available. The Getzen valves were chosen for use on the Teatro trumpet, which Leigh McKinney and I have put together. I can't say that I'll mind having to get used to a more traditional feel for my fingers, as we've put together a very fine instrument!
Cheers,
Bruce