I turned a Reinheart in acrylic, and I sort of like it, but I agree with Johnny that the hexagons don't do it for me. I personally would LOVE it if they would update the Nav/Barrons to not have the black threads. In fact, I've considered swapping the Reinharts and a Nav's hardware so I could do a Nav with nice threads, and make the Reinhart with the black threads (and sell or give that one away), but the Reinhart is only available in Chrome or Gold here locally, and I can't bring myself to pirate an $18 kit to upgrade a $9 one.
In the end, I like the weight, and the feel of the pen, but the look of the hexagons is lost on me (tho that could change if I see one made with a faceted body to match...)
Triton I have not tried yet, but I'd like to, and the Electra looks interesting also, as I've personally LOVED the Zen, but the threaded ends (end cap and nib) coming loose all the time is wearing on me, so I'd like to see if one of these threaded cap ones have the same look without those problems.