This is just a two thumbs up for RandyT and the KeyWiz units, especially for non-USA builders like myself (Australia).
Within 5 days of ordering they were on my doorstep, halfway around the world. I was kept well informed each step of the way through the purchasing confirmation and posting of the package.
I bought 5 of the KeyWiz Ecos (non solders). Even with postage being quite expensive, they worked out to about $37 AU ($27.70 US).
That's about HALF of what I would pay locally.

Well done, I would recommend the Ecos to anyone in Australia looking for realistically priced encoder!