Yup, I've got 2 Epochs (make SURE you get the spec-2, if you're going to buy them).
Fantastic little beasts! Fully proportional and FAST! We even have a sister-site dedicated to just these little buggers:
http://epoch1-43.com/
The especially nice thing about these little guys is that they run on standard 27MHz AM frequency so you can buy as many as you want for racing with buddies (as long as you've got enough crystals) and even use your own Tx for better configs (I use the Perfex Tx from my Mini-Z).