Anyone used one of these? (Mosquite Blender EXP)

[popvulture]

http://www.one-control.com/mosquite-ble ... essio.html

I found this guy just googling "wet dry blend pedal." Surprisingly there aren't a ton out there—the two main ones that come up are this (there are two versions) and the Xotic X-Blender (which seems rad, but has more features than I want, is too expensive and too big). Seems like there would be more of this kind of thing out there. What am I missing?

That aside, couple of questions:

—Anybody used one? If so, how do you like it? I was thinking this would help solve the problem I was having finding a good compressor with parallel control, not to mention that it could be fun with plenty of other effects. And then there's the expression pedal input. They do make a smaller one without EXP, but I don't think the buffer is switchable.
—Maybe this is something I should instead just try to make myself. I'm not quite there yet, but I'm getting better and this couldn't be that complicated. Thoughts?

[penelope tree]

I've got the smaller version and I haven't invested much time in evaluating its performance but it works as expected.