Zoidi 2.0 (beta version, still quite buggy) here
I didn't like the Signal either, but once I started carrying it I got to love it. Still not a fan of the plastic bits, still hoping that they make more options for those plastic bits, still hoping they make a Signal 2.0 with 4 outside tools.
In terms of Wave vs. Signal, I would say it boils down to
Tap Hammer vs. Diamond file
For me, there is no need for sharpening on an outdoor trip (you can do that before you leave), the tap hammer on the other hand will be useful on many occasions.