So, day 2 mini review:
I was able to mess with the unit a lot more yesterday evening. I previously had a Nexus 7 install, so I basically already knew the sort of things I wanted - Podcast Addict, PowerAmp, MapFactor navigation, etc. I need to get my microSD card in before I can really do anything with offline navigation apps, so I can't comment too much on that.
It turns out, PowerAmp is not compatible with the Ca-Fi. Not a huge deal, I just downloaded Google Play Music, which does work (and there's a host of other apps that'll probably work). Like I said, the stock music app is pretty awful, so unless you're all about keeping this thing stock for some reason, you'll probably wanna get a different player. The good news is that so far, the physical buttons (next/previous) seem to work in Google Play Music.
Before I got a chance to install another different music player or Torque, I ran out of space on the head unit (I downloaded some podcasts in Podcast Addict also), so I have to wait until tomorrow to get my Micro SD card.
I haven't messed with Tasker at all yet, but I did install it, so I know it's compatible with the device.
Right now, my main concerns with the Ca-Fi are the random unmounting of the USB drive and the absurd, 2 year old 30 pin dock connector for iPhone. If the unit won't randomly unmount microSD cards, I'll be happy, as I don't really plan on using thumb drives. I think Apple's official 30-pin to lightning connector does audio, but all of the knock off ones do not, and I really cannot justify spending $30 on Apple's. If anyone finds an adapter for this that works, it would benefit myself (and probably others here) if you could send us a link for it.
TL;DR - my opinion of the unit has gone up since yesterday.