Update Review - I'm sold
I covered the installation process earlier, but I want to give a report on how it actually works. Like I said, I converted one of the missus' boards (make that ex-missus now, but whatever) even though I am a two-plank man. We finally used it over last season and she loved it. Much, MUCH better than snowshoes with board on pack. For anything but the steepest terrain this is the way to go, just so much better and less effort than snowshoes (for the steepest you want crampons anyway). She could finally keep up with me without killing herself and really started to enjoy the BC. BC is just much more fun and enjoyable without a board on your back.
I have to admit I was very skeptical of the whole splitboard concept when I first heard of it (and even after I saw it), but Voile really has this nailed. The conversion is snappy and secure (though not as nice as AT, but what is?), it tours well, and it snowboards well enough that you knuckle draggers can put off learning to ski. This was all without Spark R&D bindings; from what I'm told those make it just as good as a regular board (keep in mind that non-Spark bindings get an extra 2 cm or so of lift off the board, something many boarders do not like). I'm sold enough on this that instead of telling my BC snowboard buddies to "get a job and learn to ski", I now tell them to "get a job and get a splitboard".
As a side note, I highly recommend getting the Voile ski crampons with it. Well, I recommend getting ski crampons with any BC setup because they're fantastic, but with only one metal edge on the splitboard skis it is even more important to have the super-edging capability of ski crampons while climbing on hard snow. Voile's ski crampons are great in this regard, too. I really can't say enough good about them.