Just want to apologize to everyone waiting for my further detailed reviews on these. Like Phil/Cosmic Ears, I've been crazy, unexpectedly busy recently. I promise to work on the initial post and get more info up soon. But thanks to Sonny for being much faster than I am and giving people something to read!
I continue to be impressed by the Pure Plus (single BA) and even more so by the Flex twin. The Pure Plus is just a solid entry level unit all around - competitive with any single driver BA unit I've ever heard. It might give up a few things here and there - some top end sparkle to the (much more expensive) Etymotic ER4 models, and perhaps the slightest bit of low end impact to the Phonak PFE 121 with black filters. But overall, when taken as a whole, the Pure Plus gives them all a good run for the money in SQ. Add in the custom molded aspect and a similar (or lower!) price and it seems like a no brainer.
The Flex twin is more of the same but improved by another step. I prefer it to my $399 Westone AC2 dual driver customs if that tells you anything. The AC2 does bass in a more spectacular fashion but the Flex twin has a far more natural, believable sound to it. For a lot of folks, I think this is the sweet spot between price and performance in the Cosmic Ears line. But of course I haven't yet heard the triple Hybrid in any of its incarnations so we'll see how I feel after that.
Because i'm just going to take the risk if it's not. I don't feel like waiting much longer. It can't Possibly be worse 
