I've only managed to get 5/8 messages so far but I really like the vibe of this game.
I also ran into the same problem as the previous poster where the recording didn't work, only to realize later that you're not supposed to stop the recording where you started, but rather when the signal stops.
Also I feel like the timing for everything is a bit too tight, and recharging power being all RNG is really annoying. I'd love to try it again after some more balancing work has been done.