Quality low-cost TTL radio trigger (Canon) available currently worth buying these days?

Of course (as 24Peter mentioned) there's the new Yongnuo YN-622, which seem to be getting some pretty positive feedback from users on Amazon. There's a link or two from lightingrumors - but I'm guessing you've seen it and aren't interested? I'm only familiar with the Phottix Odin - which I've seen in person and really liked. But, it's heading towards RP and PW prices. I know the Pixel stuff is well loved - but have never seen anybody actually using it. I always get concerned about trying to return ebay items.

What I'm waiting for now is to see what some of the manufacturers do as far as creating radio compatible triggers and flashes to go with the new Canon RT system. I think we're going to see some really interesting devices coming soon. I bet Yongnuo engineers have been working on backward engineering something for a few months now!