I suppose that now I have had the textblade for a week I can post some thoughts about adapting to it. I am now mostly acclimated to the keyboard and my fingers are better adapted to reaching shorter distances to the keys. The macro capabilities in the keyboard have been really useful to allow me to enter boilerplate text, and having the same key combinations has been really helpful. I do use Textexpander when writing on my Mac, but it has had less utility for me on other platforms because I can't install it on my work computer, and it doesn't have the ability to connect at a system level on my iOS devices. Having macros anywhere that I have the keyboard has been great, and I hope that Waytools expands the kinds of things that can be saved into a macro (after general release, of course - this is not the kind of thing that should prevent it from getting wider distribution).
I have been surprised at how quickly my fingers have adapted to having the arrow keys on the home row. It now seems instinctive to press the D and F keys (for me they are mapped to the letters S and T, but for the purposes of activating layers they work the same regardless of key map) to activate the home row cursor, and then my right hand works as if I had moved it to the inverted-T arrow keys on a standard keyboard. Very helpful and allows one's hands to stay in the same position despite moving from writing text to editing. The other key combination that has been super useful is the 'select previous word' shortcut using the 'select' layer. With one quick key press I can select the previous word typed. When correcting typos, this has been a great timesaver. It is a lot faster to just select the previous word in its entirety rather than repeatedly hitting backspace to back up letter-by-letter.
My typing speed has increased as well, and is now pretty close to where it was previously. I have done a few tests on Typeracer, and I am at around 70wpm with 98% accuracy, sometimes hitting 80wpm. I am still finding that I hit the wrong key for some letters, but that problem is going away fairly quickly. I have adjusted the 'boundaries' for the far-right key to make it less likely that I type the enter key by accident. The app makes changing these boundaries really easy - it has a series of sliders that let you customize the device. I am hopeful that Waytools takes some of the TREG testers' experiences into account when setting the defaults for each key. Personally I think the enter key should be de-emphasized because it causes problems if accidentally typed, especially in Apple's messages app where it triggers an immediate 'send'. I sent my wife several text messages in multiple parts simply because the enter key was hit prematurely when I was trying to backspace over a typo. That problem has gone away now that I have adjusted the boundaries.
One week in, and I can see why other testers have wanted to use the TB as a full-time keyboard. The portability is great, though once it is finally for sale I intend to buy a second one (my original order was just for one) so that I can leave one at work and have one at home and on the go.
That's my update one week in. As context: hammering out this post took no more than 10 minutes, mostly uninterrupted.