I got my V&H Dresser True Duals installed last Thursday night, and went for a ride Friday morning.
I love the pipes.

Fit and finish is great, install was drop in, after I bought the missing bracket from H-D.
The bracket was missing on my bike from the factory, as mine is a 1992, not a fault of V&H.
It might be nice if V&H would offer the option of including that bracket with the pipes, as it would save a trip to H-D, (an evil place with new shiny bikes) or mail order delay.
They seem to have more power at cruise, and I don't hammer it hard enough to notice if they cost some low end power as I heard one or two say.
With the Samson Rolled Thunder muffs, they sound GREAT!
With that said, the 93,000 mile tranny let go an hour into the ride,

so the pipes get to come off and go back in the box for a while.