Has anyone given this a try, if what did you think of it?

All I can say is wow. I needed Some new motive power with sound at a reasonable price. So I ordered 2 Bachmann RS-3s. I programed new address's into both units. Then I tried to change things a little. First of I changed cv 116 from 39 (factory setting) to 36.
At speed step 128. Operating Now at start up you hear engine rev up and at step 4 another increase and again at step 8 again. This gives the alco's a more realistic sound while working yards and main line.  I then purchased Bachmann alco s-4 and did the same to it, again wow. So I ordered 2 alco FA2s and another RS-3. I am so so satisified with these changes and there running smoothness and all I can say is wow. Way to go Bachmann, good value at a lower price.

Hay Bach - Man

I am Looking at new motive power with sound. Any chance of seeing  your GP-7/9 in DCC w soundtraxx sound any time soon or within a yr.

choochoopapa