Got this set from Barweer and it's really nice! The detail on it is amazing, and the scale seems to be about 1:56 scale so it fits minifigures well! The "crew" minifigures that came with it left a lot to be desired, but the sub itself is beautiful. For about $120 you really can't beat it.
The custom-printed pieces I ordered from MyGoBricks for my Dusenberg finally came in! I think they look pretty nice, though unfortunately the Dashboard piece lost a lot of detail from my design. (at least it's not that noticeable when it's actually in the car)
I'm really happy with the license plate though, I based that on actual NY license plates from 1930 (I envisioned this as being a big fancy car in NYC in the 1930s, the plate # is an easter egg for the release date of the first Mafia game)