I bought an EA here in a co-op. At $135 I'm still not convinced it was a bargain.
It is very well machined, and it is very substantial compared to Chinese mech mods I have tried, but I wish they had come up with a better solution as far as assembling the switch goes.
My retaining clip came off within 30 minutes of receiving mine and I ended up having to buy a tiny c-clip from the hardware store as the original clip shot across my kitchen, never to be seen again while trying to re-assemble the switch.
The replacement clip isn't a perfect fit though (I assume the original was metric), and it often comes off when I run the nut out to lock the switch, at wich point the whole switch comes apart and has to be reassembled, again.