I've just had the Stage1 with the V&H Pro Pipe. The performance, the sound and the looks are absolutely amazing.
I'm running the pipes without the quiet baffle and I'm told by others including non Harley riders, that the sound is acceptable and good. It's basically a deep throaty rumble. I did try the quiet baffle but the sound was not great and probably not much quieter than the pipe without the baffle. I was also very impressed with the performance increase. I was sceptical at first about possible performance increase with the Stage 1 but there is a noticeable difference.
The only negative and it's just a minor one, is that the on stereo is now only good up to about 50mph. I might look at options to boost the audio performance as I like riding with the music blaring out.